Misc

Case sensitivity

• Python is case sensitive.

Memory management

• Python performs limited garbage collection (reference counting, rather than mark and sweep).
• Memory only has to be managed explicitly in the case of circular references and tracebacks.

Modules

• A module is a python file
• A package is a directory containing a __init__.py file, and one or more modules or subpackages

Import a module in the current directory

import myfile
myfile.myvar  # To use the variable, prefix it with the module name

from myfile import myvar
myvar   # No need to prefix the variable

from myfile import *
myvar   # No need to prefix the variable

Import a module in a package

import mypackage.myfile
mypackage.myfile.myvar  # To use the variable, prefix it with the package and module name

from mypackage.custom import *
myvar   # No need to prefix the variable

Misc

• Licensed under the Python Software Foundation License (FSF-approved; GPL-compatible)

• Documentation Strings
• Pickle module
• Namespaces
• del
• Assignments do not copy data -- they just bind names to objects. The same is true for deletions: the statement "del x" removes the binding of x from the namespace referenced by the local scope.