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"""Show useful things about a Python installation."""
import sys
def main():
show_version()
show_sizes()
show_encoding()
show_path()
def show_version():
print("Python version:\n {0}".format(sys.version.replace("\n", "\n ")))
print("Python executable: {0!r}".format(sys.executable))
print("Python prefix: {0!r}".format(sys.prefix))
if hasattr(sys, "real_prefix"):
print("This is a virtualenv. The real prefix is: {0!r}".format(sys.real_prefix))
else:
print("This is not a virtualenv.")
def show_sizes():
if sys.maxsize == 2**63-1:
indicates = "indicating 64-bit"
elif sys.maxsize == 2**31-1:
indicates = "indicating 32-bit"
else:
indicates = "not sure what that means"
print("sys.maxsize: {0!r}, {1}".format(sys.maxsize, indicates))
if hasattr(sys, "maxint"):
print("sys.maxint: {0!r}".format(sys.maxint))
else:
print("sys.maxint doesn't exist")
def show_encoding():
if sys.version_info < (3, 0):
if sys.maxunicode == 1114111:
indicates = "indicating a wide Unicode build"
elif sys.maxunicode == 65535:
indicates = "indicating a narrow Unicode build"
else:
indicates = "as all Python 3 have"
print("sys.maxunicode: {0!r}, {1}".format(sys.maxunicode, indicates))
print("sys.getdefaultencoding(): {0!r}".format(sys.getdefaultencoding()))
print("sys.getfilesystemencoding(): {0!r}".format(sys.getfilesystemencoding()))
def show_path():
print("sys.path:")
print("\n".join(" {0!r}".format(p) for p in sys.path))
if __name__ == "__main__":
main()
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