Overhaul of the documentation and introduced decorator.decorate

author: Michele Simionato <michele.simionato@gmail.com> 2015-07-19 09:40:52 +0200
committer: Michele Simionato <michele.simionato@gmail.com> 2015-07-19 09:40:52 +0200
commit: cf20ab367249c9eca473d6f9989f0721e451b033 (patch)
tree: 048446c39cd14f983897ba8cad6bd6abfa243837 /documentation.pdf
parent: 79c669ce71afcd70b49344823b5ccc8a61023f98 (diff)
download: python-decorator-git-cf20ab367249c9eca473d6f9989f0721e451b033.tar.gz
1 files changed, 795 insertions, 833 deletions
diff --git a/documentation.pdf b/documentation.pdf
index 4d24890..f518aac 100644
--- a/documentation.pdf
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-BT 1 0 0 1 0 170 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (memoize_uw) Tj 0 0 0 rg (\() Tj 0 0 0 rg (func) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (    ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg ({}) Tj 0 0 0 rg  T*  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (memoize) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# frozenset is used to ensure hashability) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 .501961 0 rg (frozenset) Tj 0 0 0 rg (\() Tj 0 0 0 rg (kw) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (iteritems) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (args) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj /F5 10 Tf .666667 .133333 1 rg (in) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg (:) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ([) Tj 0 0 0 rg (key) Tj 0 0 0 rg (]) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ([) Tj 0 0 0 rg (key) Tj 0 0 0 rg (]) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (result) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (result) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (functools) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (update_wrapper) Tj 0 0 0 rg (\() Tj 0 0 0 rg (memoize) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (\)) Tj T* ET
+BT 1 0 0 1 0 134 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (memoize_uw) Tj 0 0 0 rg (\() Tj 0 0 0 rg (func) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (    ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg ({}) Tj 0 0 0 rg  T*  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (memoize) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# frozenset is used to ensure hashability) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 .501961 0 rg (frozenset) Tj 0 0 0 rg (\() Tj 0 0 0 rg (kw) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (items) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (args) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj /F5 10 Tf .666667 .133333 1 rg (not) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf .666667 .133333 1 rg (in) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg (:) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ([) Tj 0 0 0 rg (key) Tj 0 0 0 rg (]) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ([) Tj 0 0 0 rg (key) Tj 0 0 0 rg (]) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (functools) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (update_wrapper) Tj 0 0 0 rg (\() Tj 0 0 0 rg (memoize) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (\)) Tj T* ET
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+BT 1 0 0 1 0 14 Tm 1.801412 Tw 12 TL /F1 10 Tf 0 0 0 rg (Here we used the ) Tj 0 0 .501961 rg (functools.update_wrapper ) Tj 0 0 0 rg (utility, which has been added in Python 2.5 expressly to ) Tj T* 0 Tw .91686 Tw (simplify the definition of decorators \(in older versions of Python you need to copy the function attributes) Tj T* 0 Tw ET
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-BT 1 0 0 1 0 38 Tm 1.801412 Tw 12 TL /F1 10 Tf 0 0 0 rg (Here we used the ) Tj 0 0 .501961 rg (functools.update_wrapper ) Tj 0 0 0 rg (utility, which has been added in Python 2.5 expressly to) Tj T* 0 Tw .91686 Tw (simplify the definition of decorators \(in older versions of Python you need to copy the function attributes) Tj T* 0 Tw .580814 Tw /F3 10 Tf 0 0 0 rg (__name__) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (__doc__) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (__module__ ) Tj /F1 10 Tf 0 0 0 rg (and ) Tj /F3 10 Tf 0 0 0 rg (__dict__ ) Tj /F1 10 Tf 0 0 0 rg (from the original function to the decorated function) Tj T* 0 Tw (by hand\).) Tj T* ET
+BT 1 0 0 1 0 14 Tm .580814 Tw 12 TL /F3 10 Tf 0 0 0 rg (__name__) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (__doc__) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (__module__ ) Tj /F1 10 Tf 0 0 0 rg (and ) Tj /F3 10 Tf 0 0 0 rg (__dict__ ) Tj /F1 10 Tf 0 0 0 rg (from the original function to the decorated function) Tj T* 0 Tw (by hand\).) Tj T* ET
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 BT 1 0 0 1 0 26 Tm 2.517126 Tw 12 TL /F1 10 Tf 0 0 0 rg (The implementation above works in the sense that the decorator can accept functions with generic) Tj T* 0 Tw 1.233615 Tw (signatures; unfortunately this implementation does ) Tj /F4 10 Tf (not ) Tj /F1 10 Tf (define a signature-preserving decorator, since in) Tj T* 0 Tw (general ) Tj /F3 10 Tf 0 0 0 rg (memoize_uw ) Tj /F1 10 Tf 0 0 0 rg (returns a function with a ) Tj /F4 10 Tf (different signature ) Tj /F1 10 Tf (from the original function.) Tj T* ET
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-1 0 0 1 62.69291 657.0236 cm
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 0 0 0 rg
 BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (Consider for instance the following case:) Tj T* ET
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@@ -1223,13 +1217,13 @@ Q
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-1 0 0 1 62.69291 555.8236 cm
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 BT 1 0 0 1 0 14 Tm .26311 Tw 12 TL /F1 10 Tf 0 0 0 rg (Here the original function takes a single argument named ) Tj /F3 10 Tf 0 0 0 rg (x) Tj /F1 10 Tf 0 0 0 rg (, but the decorated function takes any number) Tj T* 0 Tw (of arguments and keyword arguments:) Tj T* ET
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-1 0 0 1 62.69291 498.6236 cm
+1 0 0 1 62.69291 522.6236 cm
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@@ -1315,13 +1309,13 @@ Q
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-1 0 0 1 62.69291 454.6236 cm
+1 0 0 1 62.69291 478.6236 cm
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-BT 1 0 0 1 0 26 Tm .411235 Tw 12 TL /F1 10 Tf 0 0 0 rg (This means that introspection tools such as pydoc will give wrong informations about the signature of ) Tj /F3 10 Tf 0 0 0 rg (f1) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* 0 Tw .161654 Tw (This is pretty bad: pydoc will tell you that the function accepts a generic signature ) Tj /F3 10 Tf 0 0 0 rg (*args) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (**kw) Tj /F1 10 Tf 0 0 0 rg (, but when) Tj T* 0 Tw (you try to call the function with more than an argument, you will get an error:) Tj T* ET
+BT 1 0 0 1 0 26 Tm .411235 Tw 12 TL /F1 10 Tf 0 0 0 rg (This means that introspection tools such as ) Tj /F4 10 Tf (pydoc ) Tj /F1 10 Tf (will give wrong informations about the signature of ) Tj /F3 10 Tf 0 0 0 rg (f1) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* 0 Tw .161654 Tw (This is pretty bad: ) Tj /F4 10 Tf (pydoc ) Tj /F1 10 Tf (will tell you that the function accepts a generic signature ) Tj /F3 10 Tf 0 0 0 rg (*args) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (**kw) Tj /F1 10 Tf 0 0 0 rg (, but when) Tj T* 0 Tw (you try to call the function with more than an argument, you will get an error:) Tj T* ET
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@@ -1401,19 +1395,19 @@ Q
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-1 0 0 1 62.69291 352.4236 cm
+1 0 0 1 62.69291 376.4236 cm
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 BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (The solution) Tj T* ET
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-1 0 0 1 62.69291 310.4236 cm
+1 0 0 1 62.69291 334.4236 cm
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-BT 1 0 0 1 0 26 Tm 3.313984 Tw 12 TL /F1 10 Tf 0 0 0 rg (The solution is to provide a generic factory of generators, which hides the complexity of making) Tj T* 0 Tw 3.362976 Tw (signature-preserving decorators from the application programmer. The ) Tj /F3 10 Tf 0 0 0 rg (decorator ) Tj /F1 10 Tf 0 0 0 rg (function in the) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (decorator ) Tj /F1 10 Tf 0 0 0 rg (module is such a factory:) Tj T* ET
+BT 1 0 0 1 0 26 Tm 3.313984 Tw 12 TL /F1 10 Tf 0 0 0 rg (The solution is to provide a generic factory of generators, which hides the complexity of making) Tj T* 0 Tw 3.962976 Tw (signature-preserving decorators from the application programmer. The ) Tj /F3 10 Tf 0 0 0 rg (decorate ) Tj /F1 10 Tf 0 0 0 rg (function in the) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (decorator ) Tj /F1 10 Tf 0 0 0 rg (module is such a factory:) Tj T* ET
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@@ -1439,21 +1433,21 @@ n 54 0 54 12 re f*
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-n 156 0 54 12 re f*
-BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj /F5 10 Tf 0 .501961 0 rg (from) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 0 1 rg (decorator) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 .501961 0 rg (import) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (decorator) Tj T* ET
+n 156 0 48 12 re f*
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj /F5 10 Tf 0 .501961 0 rg (from) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 0 1 rg (decorator) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 .501961 0 rg (import) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (decorate) Tj T* ET
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-1 0 0 1 62.69291 221.2236 cm
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-BT 1 0 0 1 0 38 Tm 1.716412 Tw 12 TL /F3 10 Tf 0 0 0 rg (decorator ) Tj /F1 10 Tf 0 0 0 rg (takes two arguments, a caller function describing the functionality of the decorator and a) Tj T* 0 Tw 2.594983 Tw (function to be decorated; it returns the decorated function. The caller function must have signature) Tj T* 0 Tw .19311 Tw /F3 10 Tf 0 0 0 rg (\(f,) Tj ( ) Tj (*args,) Tj ( ) Tj (**kw\) ) Tj /F1 10 Tf 0 0 0 rg (and it must call the original function ) Tj /F3 10 Tf 0 0 0 rg (f ) Tj /F1 10 Tf 0 0 0 rg (with arguments ) Tj /F3 10 Tf 0 0 0 rg (args ) Tj /F1 10 Tf 0 0 0 rg (and ) Tj /F3 10 Tf 0 0 0 rg (kw) Tj /F1 10 Tf 0 0 0 rg (, implementing) Tj T* 0 Tw (the wanted capability, i.e. memoization in this case:) Tj T* ET
+BT 1 0 0 1 0 38 Tm 2.144983 Tw 12 TL /F3 10 Tf 0 0 0 rg (decorate ) Tj /F1 10 Tf 0 0 0 rg (takes two arguments, a caller function describing the functionality of the decorator and a) Tj T* 0 Tw 2.594983 Tw (function to be decorated; it returns the decorated function. The caller function must have signature) Tj T* 0 Tw .19311 Tw /F3 10 Tf 0 0 0 rg (\(f,) Tj ( ) Tj (*args,) Tj ( ) Tj (**kw\) ) Tj /F1 10 Tf 0 0 0 rg (and it must call the original function ) Tj /F3 10 Tf 0 0 0 rg (f ) Tj /F1 10 Tf 0 0 0 rg (with arguments ) Tj /F3 10 Tf 0 0 0 rg (args ) Tj /F1 10 Tf 0 0 0 rg (and ) Tj /F3 10 Tf 0 0 0 rg (kw) Tj /F1 10 Tf 0 0 0 rg (, implementing) Tj T* 0 Tw (the wanted capability, i.e. memoization in this case:) Tj T* ET
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-1 0 0 1 62.69291 92.02362 cm
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@@ -1513,9 +1507,9 @@ n 180 72 12 12 re f*
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-n 198 72 54 12 re f*
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-n 252 72 18 12 re f*
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@@ -1537,58 +1531,19 @@ n 96 36 6 12 re f*
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-n 144 36 174 12 re f*
+n 144 36 168 12 re f*
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-n 66 24 12 12 re f*
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-n 84 24 30 12 re f*
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-n 114 24 6 12 re f*
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-n 48 12 36 12 re f*
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-n 90 12 30 12 re f*
-.960784 .960784 .862745 rg
-n 120 12 6 12 re f*
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-n 144 12 6 12 re f*
-.960784 .960784 .862745 rg
-n 24 0 24 12 re f*
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-n 48 0 6 12 re f*
-BT 1 0 0 1 0 98 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (_memoize) Tj 0 0 0 rg (\() Tj 0 0 0 rg (func) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# frozenset is used to ensure hashability) Tj /F3 10 Tf 0 0 0 rg  T* (        ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 .501961 0 rg (frozenset) Tj 0 0 0 rg (\() Tj 0 0 0 rg (kw) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (iteritems) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (args) Tj 0 0 0 rg  T* (    ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (cache) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# attributed added by memoize) Tj /F3 10 Tf 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (key) Tj 0 0 0 rg ( ) Tj /F5 10 Tf .666667 .133333 1 rg (in) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg (:) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (cache) Tj 0 0 0 rg ([) Tj 0 0 0 rg (key) Tj 0 0 0 rg (]) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* ET
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+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (You can check that the ) Tj /F3 10 Tf 0 0 0 rg (__annotations__ ) Tj /F1 10 Tf 0 0 0 rg (dictionary is preserved:) Tj T* ET
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-BT 1 0 0 1 0 14 Tm 1.806654 Tw 12 TL /F1 10 Tf 0 0 0 rg (and now ) Tj /F3 10 Tf 0 0 0 rg (trace ) Tj /F1 10 Tf 0 0 0 rg (will be a decorator. Actually ) Tj /F3 10 Tf 0 0 0 rg (trace ) Tj /F1 10 Tf 0 0 0 rg (is a ) Tj /F3 10 Tf 0 0 0 rg (partial ) Tj /F1 10 Tf 0 0 0 rg (object which can be used as a) Tj T* 0 Tw (decorator:) Tj T* ET
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (and now ) Tj /F3 10 Tf 0 0 0 rg (trace ) Tj /F1 10 Tf 0 0 0 rg (will be a decorator.) Tj T* ET
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-q
-BT 1 0 0 1 0 14 Tm 2.44686 Tw 12 TL /F1 10 Tf 0 0 0 rg (If you are using an old Python version \(Python 2.4\) the ) Tj /F3 10 Tf 0 0 0 rg (decorator ) Tj /F1 10 Tf 0 0 0 rg (module provides a poor man) Tj T* 0 Tw (replacement for ) Tj /F3 10 Tf 0 0 0 rg (functools.partial) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
-Q
-Q
-q
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-1 0 0 1 62.69291 239.4236 cm
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 BT 1 0 0 1 0 26 Tm 1.224692 Tw 12 TL /F1 10 Tf 0 0 0 rg (Sometimes one has to deal with blocking resources, such as ) Tj /F3 10 Tf 0 0 0 rg (stdin) Tj /F1 10 Tf 0 0 0 rg (, and sometimes it is best to have) Tj T* 0 Tw .266235 Tw (back a "busy" message than to block everything. This behavior can be implemented with a suitable family) Tj T* 0 Tw (of decorators, where the parameter is the busy message:) Tj T* ET
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+n -6 -6 468.6898 156 re B*
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-BT 1 0 0 1 0 122 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (blocking) Tj 0 0 0 rg (\() Tj 0 0 0 rg (not_avail) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (blocking) Tj 0 0 0 rg (\() Tj 0 0 0 rg (f) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf .666667 .133333 1 rg (not) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 .501961 0 rg (hasattr) Tj 0 0 0 rg (\() Tj 0 0 0 rg (f) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg ("thread") Tj 0 0 0 rg (\):) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# no thread running) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (set_result) Tj 0 0 0 rg (\(\):) Tj 0 0 0 rg  T* (                ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (result) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (threading) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (Thread) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (None) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (set_result) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (start) Tj 0 0 0 rg (\(\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (not_avail) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (elif) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (isAlive) Tj 0 0 0 rg (\(\):) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (not_avail) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# the thread is ended, return the stored result) Tj /F3 10 Tf 0 0 0 rg  T* ET
+n 108 0 36 12 re f*
+BT 1 0 0 1 0 134 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (blocking) Tj 0 0 0 rg (\() Tj 0 0 0 rg (not_avail) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (_blocking) Tj 0 0 0 rg (\() Tj 0 0 0 rg (f) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (if) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf .666667 .133333 1 rg (not) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 .501961 0 rg (hasattr) Tj 0 0 0 rg (\() Tj 0 0 0 rg (f) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg ("thread") Tj 0 0 0 rg (\):) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# no thread running) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (set_result) Tj 0 0 0 rg (\(\):) Tj 0 0 0 rg  T* (                ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (result) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (threading) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (Thread) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (None) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (set_result) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (start) Tj 0 0 0 rg (\(\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (not_avail) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (elif) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (isAlive) Tj 0 0 0 rg (\(\):) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (not_avail) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# the thread is ended, return the stored result) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (del) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj 0 0 0 rg  T* ET
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@@ -3275,12 +3266,12 @@ Q
  
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 1 0 0 1 0 0 cm  BT /F1 12 Tf 14.4 TL ET
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+1 0 0 1 62.69291 727.8236 cm
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 .662745 .662745 .662745 RG
 .5 w
 .960784 .960784 .862745 rg
-n -6 -6 468.6898 48 re B*
+n -6 -6 468.6898 36 re B*
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-n 72 24 18 12 re f*
-.960784 .960784 .862745 rg
-n 96 24 6 12 re f*
-.960784 .960784 .862745 rg
-n 102 24 6 12 re f*
-.960784 .960784 .862745 rg
-n 108 24 36 12 re f*
-.960784 .960784 .862745 rg
 n 72 12 36 12 re f*
 .960784 .960784 .862745 rg
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@@ -3316,23 +3299,23 @@ n 66 0 54 12 re f*
 .960784 .960784 .862745 rg
 n 120 0 6 12 re f*
 .960784 .960784 .862745 rg
-n 126 0 48 12 re f*
+n 126 0 54 12 re f*
 .960784 .960784 .862745 rg
-n 174 0 6 12 re f*
-BT 1 0 0 1 0 26 Tm 12 TL /F3 10 Tf 0 0 0 rg (            ) Tj /F5 10 Tf 0 .501961 0 rg (del) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (thread) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (result) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (decorator) Tj 0 0 0 rg (\() Tj 0 0 0 rg (blocking) Tj 0 0 0 rg (\)) Tj T* ET
+n 180 0 6 12 re f*
+BT 1 0 0 1 0 14 Tm 12 TL /F3 10 Tf 0 0 0 rg (            ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (result) Tj 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (decorator) Tj 0 0 0 rg (\() Tj 0 0 0 rg (_blocking) Tj 0 0 0 rg (\)) Tj T* ET
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+1 0 0 1 62.69291 695.8236 cm
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 BT 1 0 0 1 0 14 Tm 1.010651 Tw 12 TL /F1 10 Tf 0 0 0 rg (Functions decorated with ) Tj /F3 10 Tf 0 0 0 rg (blocking ) Tj /F1 10 Tf 0 0 0 rg (will return a busy message if the resource is unavailable, and the) Tj T* 0 Tw (intended result if the resource is available. For instance:) Tj T* ET
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+1 0 0 1 62.69291 446.6236 cm
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@@ -3536,26 +3519,26 @@ Q
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+1 0 0 1 62.69291 413.6236 cm
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 BT 1 0 0 1 0 3.5 Tm 21 TL /F3 17.5 Tf 0 0 0 rg (async) Tj T* ET
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+1 0 0 1 62.69291 371.6236 cm
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 0 0 0 rg
-BT 1 0 0 1 0 26 Tm /F1 10 Tf 12 TL 1.647485 Tw (We have just seen an examples of a simple decorator factory, implemented as a function returning a) Tj T* 0 Tw .29784 Tw (decorator. For more complex situations, it is more convenient to implement decorator factories as classes) Tj T* 0 Tw (returning callable objects that can be converted into decorators.) Tj T* ET
+BT 1 0 0 1 0 26 Tm /F1 10 Tf 12 TL 1.647485 Tw (We have just seen an examples of a simple decorator factory, implemented as a function returning a) Tj T* 0 Tw .25784 Tw (decorator. For more complex situations, it is more convenient to implement decorator factories as callable) Tj T* 0 Tw (objects that can be converted into decorators.) Tj T* ET
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-1 0 0 1 62.69291 293.6236 cm
+1 0 0 1 62.69291 305.6236 cm
 q
 BT 1 0 0 1 0 50 Tm 2.853876 Tw 12 TL /F1 10 Tf 0 0 0 rg (As an example, here will I show a decorator which is able to convert a blocking function into an) Tj T* 0 Tw 2.477126 Tw (asynchronous function. The function, when called, is executed in a separate thread. Moreover, it is) Tj T* 0 Tw .288443 Tw (possible to set three callbacks ) Tj /F3 10 Tf 0 0 0 rg (on_success) Tj /F1 10 Tf 0 0 0 rg (, ) Tj /F3 10 Tf 0 0 0 rg (on_failure ) Tj /F1 10 Tf 0 0 0 rg (and ) Tj /F3 10 Tf 0 0 0 rg (on_closing) Tj /F1 10 Tf 0 0 0 rg (, to specify how to manage) Tj T* 0 Tw 1.854724 Tw (the function call \(of course the code here is just an example, it is not a recommended way of doing) Tj T* 0 Tw (multi-threaded programming\). The implementation is the following:) Tj T* ET
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@@ -3593,7 +3576,7 @@ Q
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+1 0 0 1 62.69291 191.2236 cm
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@@ -3629,7 +3612,7 @@ Q
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Examples:) Tj T*  T* (    async_with_threads =  Async\(threading.Thread\)) Tj T* (    async_with_processes =  Async\(multiprocessing.Process\)) Tj T* (    """) Tj /F3 10 Tf 0 0 0 rg  T*  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (__init__) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (self) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_success) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg (,) Tj 0 0 0 rg  T* (                 ) Tj 0 0 0 rg (on_failure) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (on_failure) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_closing) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (on_closing) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_failure) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_failure) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) 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Tj 0 0 0 rg (counter) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (except) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf .823529 .254902 .227451 rg (AttributeError) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# instantiate the counter at the first call) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj 0 0 0 rg (counter) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (counter) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (itertools) Tj .4 .4 .4 rg (.) 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Tj 0 0 0 rg (exc_info) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (                ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg (\() Tj 0 0 0 rg (result) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (finally) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (                ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_closing) Tj 0 0 0 rg (\(\)) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (thread) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (None) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func_wrapper) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (name) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (thread) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (start) Tj 0 0 0 rg (\(\)) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (thread) Tj T* ET
+BT 1 0 0 1 0 386 Tm 12 TL /F6 10 Tf .729412 .129412 .129412 rg (    A decorator converting blocking functions into asynchronous) Tj T* (    functions, by using threads or processes. Examples:) Tj T*  T* (    async_with_threads = Async\(threading.Thread\)) Tj T* (    async_with_processes = Async\(multiprocessing.Process\)) Tj T* (    """) Tj /F3 10 Tf 0 0 0 rg  T*  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (__init__) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (self) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_success) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg (,) Tj 0 0 0 rg  T* (                 ) Tj 0 0 0 rg (on_failure) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (on_failure) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_closing) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (on_closing) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_failure) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_failure) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_closing) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (on_closing) Tj 0 0 0 rg  T*  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (__call__) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (self) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (*) Tj 0 0 0 rg (args) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (**) Tj 0 0 0 rg (kw) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (try) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (            ) Tj 0 0 0 rg (counter) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (counter) Tj 0 0 0 rg  T* (        ) Tj /F5 10 Tf 0 .501961 0 rg (except) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf .823529 .254902 .227451 rg (AttributeError) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg (  ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# instantiate the counter at the first call) Tj /F3 10 Tf 0 0 0 rg  T* (            ) Tj 0 0 0 rg (counter) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (counter) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (itertools) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (count) Tj 0 0 0 rg (\() Tj .4 .4 .4 rg (1) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (name) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg (') Tj /F5 10 Tf .733333 .4 .533333 rg (%s) Tj /F3 10 Tf .729412 .129412 .129412 rg (-) Tj /F5 10 Tf .733333 .4 .533333 rg (%s) Tj /F3 10 Tf .729412 .129412 .129412 rg (') Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (%) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (\() Tj 0 0 0 rg (func) Tj .4 .4 .4 rg (.) 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Tj 0 0 0 rg (exc_info) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (else) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (                ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_success) Tj 0 0 0 rg (\() Tj 0 0 0 rg (result) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (            ) Tj /F5 10 Tf 0 .501961 0 rg (finally) Tj /F3 10 Tf 0 0 0 rg (:) Tj 0 0 0 rg  T* (                ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (on_closing) Tj 0 0 0 rg (\(\)) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (thread) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 .501961 0 rg (self) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (threadfactory) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (None) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func_wrapper) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (name) Tj 0 0 0 rg (\)) Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (thread) Tj .4 .4 .4 rg (.) 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-BT 1 0 0 1 0 50 Tm .20561 Tw 12 TL /F1 10 Tf 0 0 0 rg (The ) Tj /F3 10 Tf 0 0 0 rg (ba ) Tj /F1 10 Tf 0 0 0 rg (decorator is basically inserting a ) Tj /F3 10 Tf 0 0 0 rg (with) Tj ( ) Tj (ba: ) Tj /F1 10 Tf 0 0 0 rg (block inside the function. However there two issues: ) Tj T* 0 Tw 1.402126 Tw (the first is that ) Tj /F3 10 Tf 0 0 0 rg (GeneratorContextManager ) Tj /F1 10 Tf 0 0 0 rg (objects are callable only in Python 3.2, so the previous ) Tj T* 0 Tw .356905 Tw (example will break in older versions of Python; the second is that ) Tj /F3 10 Tf 0 0 0 rg (GeneratorContextManager ) Tj /F1 10 Tf 0 0 0 rg (objects ) Tj T* 0 Tw .57561 Tw (do not preserve the signature of the decorated functions: the decorated ) Tj /F3 10 Tf 0 0 0 rg (hello ) Tj /F1 10 Tf 0 0 0 rg (function here will have a ) Tj T* 0 Tw 3.990814 Tw (generic signature ) Tj /F3 10 Tf 0 0 0 rg (hello\(*args,) Tj ( ) Tj (**kwargs\) ) Tj /F1 10 Tf 0 0 0 rg (but will break when called with more than zero) Tj T* 0 Tw ET
+BT 1 0 0 1 0 74 Tm .20561 Tw 12 TL /F1 10 Tf 0 0 0 rg (The ) Tj /F3 10 Tf 0 0 0 rg (ba ) Tj /F1 10 Tf 0 0 0 rg (decorator is basically inserting a ) Tj /F3 10 Tf 0 0 0 rg (with) Tj ( ) Tj (ba: ) Tj /F1 10 Tf 0 0 0 rg (block inside the function. However there two issues: ) Tj T* 0 Tw 1.402126 Tw (the first is that ) Tj /F3 10 Tf 0 0 0 rg (GeneratorContextManager ) Tj /F1 10 Tf 0 0 0 rg (objects are callable only in Python 3.2, so the previous ) Tj T* 0 Tw .356905 Tw (example will break in older versions of Python; the second is that ) Tj /F3 10 Tf 0 0 0 rg (GeneratorContextManager ) Tj /F1 10 Tf 0 0 0 rg (objects ) Tj T* 0 Tw .57561 Tw (do not preserve the signature of the decorated functions: the decorated ) Tj /F3 10 Tf 0 0 0 rg (hello ) Tj /F1 10 Tf 0 0 0 rg (function here will have a ) Tj T* 0 Tw 3.990814 Tw (generic signature ) Tj /F3 10 Tf 0 0 0 rg (hello\(*args,) Tj ( ) Tj (**kwargs\) ) Tj /F1 10 Tf 0 0 0 rg (but will break when called with more than zero ) Tj T* 0 Tw 7.708314 Tw (arguments. For such reasons the decorator module, starting with release 3.4, offers a ) Tj T* 0 Tw 1.027251 Tw /F3 10 Tf 0 0 0 rg (decorator.contextmanager ) Tj /F1 10 Tf 0 0 0 rg (decorator that solves both problems and works in all supported Python) Tj T* 0 Tw ET
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+BT 1 0 0 1 0 26 Tm 2.85816 Tw 12 TL /F1 10 Tf 0 0 0 rg (versions. The usage is the same and factories decorated with ) Tj /F3 10 Tf 0 0 0 rg (decorator.contextmanager ) Tj /F1 10 Tf 0 0 0 rg (will) Tj T* 0 Tw .17122 Tw (returns instances of ) Tj /F3 10 Tf 0 0 0 rg (ContextManager) Tj /F1 10 Tf 0 0 0 rg (, a subclass of ) Tj /F3 10 Tf 0 0 0 rg (contextlib.GeneratorContextManager ) Tj /F1 10 Tf 0 0 0 rg (with) Tj T* 0 Tw (a ) Tj /F3 10 Tf 0 0 0 rg (__call__ ) Tj /F1 10 Tf 0 0 0 rg (method acting as a signature-preserving decorator.) Tj T* ET
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+BT 1 0 0 1 0 86 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (decorator_apply) Tj 0 0 0 rg (\() Tj 0 0 0 rg (dec) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (\):) Tj 0 0 0 rg  T* (    ) Tj /F6 10 Tf .729412 .129412 .129412 rg (""") Tj T* (    Decorate a function by preserving the signature even if dec) Tj T* (    is not a signature-preserving decorator.) Tj T* (    """) Tj /F3 10 Tf 0 0 0 rg  T* (    ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 0 rg (FunctionMaker) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (create) Tj 0 0 0 rg (\() Tj 0 0 0 rg  T* (        ) Tj 0 0 0 rg (func) Tj 0 0 0 rg (,) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg ('return decorated\() Tj /F5 10 Tf .733333 .4 .533333 rg (%\(signature\)s) Tj /F3 10 Tf .729412 .129412 .129412 rg (\)') Tj 0 0 0 rg (,) Tj 0 0 0 rg  T* (        ) Tj 0 .501961 0 rg (dict) Tj 0 0 0 rg (\() Tj 0 0 0 rg (decorated) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (dec) Tj 0 0 0 rg (\() Tj 0 0 0 rg (func) Tj 0 0 0 rg (\)\),) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (__wrapped__) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg (func) Tj 0 0 0 rg (\)) Tj T* ET
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author	Michele Simionato <michele.simionato@gmail.com>	2015-07-19 09:40:52 +0200
committer	Michele Simionato <michele.simionato@gmail.com>	2015-07-19 09:40:52 +0200
commit	cf20ab367249c9eca473d6f9989f0721e451b033 (patch)
tree	048446c39cd14f983897ba8cad6bd6abfa243837 /documentation.pdf
parent	79c669ce71afcd70b49344823b5ccc8a61023f98 (diff)
download	python-decorator-git-cf20ab367249c9eca473d6f9989f0721e451b033.tar.gz