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# mode: run
# tag: string, unicode, sequence unpacking, starexpr
def unpack_single_str():
"""
>>> print(unpack_single_str())
a
"""
a, = 'a'
return a
def unpack_str():
"""
>>> a,b = unpack_str()
>>> print(a)
a
>>> print(b)
b
"""
a,b = 'ab'
return a,b
def star_unpack_str():
"""
>>> a,b,c = star_unpack_str()
>>> print(a)
a
>>> type(b) is list
True
>>> print(''.join(b))
bbb
>>> print(c)
c
"""
a,*b,c = 'abbbc'
return a,b,c
def unpack_single_unicode():
"""
>>> print(unpack_single_unicode())
a
"""
a, = u'a'
return a
def unpack_unicode():
"""
>>> a,b = unpack_unicode()
>>> print(a)
a
>>> print(b)
b
"""
a,b = u'ab'
return a,b
def star_unpack_unicode():
"""
>>> a,b,c = star_unpack_unicode()
>>> print(a)
a
>>> type(b) is list
True
>>> print(''.join(b))
bbb
>>> print(c)
c
"""
a,*b,c = u'abbbc'
return a,b,c
# the following is not supported due to Py2/Py3 bytes differences
## def unpack_single_bytes():
## """
## >>> print(unpack_single_bytes().decode('ASCII'))
## a
## """
## a, = b'a'
## return a
## def unpack_bytes():
## """
## >>> a,b = unpack_bytes()
## >>> print(a.decode('ASCII'))
## a
## >>> print(b.decode('ASCII'))
## b
## """
## a,b = b'ab'
## return a,b
## def star_unpack_bytes():
## """
## >>> a,b,c = star_unpack_bytes()
## >>> print(a.decode('ASCII'))
## a
## >>> type(b) is list
## True
## >>> print(''.join([ch.decode('ASCII') for ch in b]))
## bbb
## >>> print(c.decode('ASCII'))
## c
## """
## a,*b,c = b'abbbc'
## return a,b,c
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