effbot.orghttp://effbot.orgeffbot.org(A Semi-Official) Python FAQ Zonehttp://effbot.org/pyfaq/index.htmCategory: extendinghttp://effbot.org/pyfaq/extending-index.htmlink c indexhttp://effbot.org/pyfaq/zone-link-c.htmWriting C is hard; are there any alternatives?http://effbot.org/pyfaq/writing-c-is-hard-are-there-any-alternatives.htmWork In Progresshttp://effbot.org/pyfaq/work-in-progress.htmCategory: windowshttp://effbot.org/pyfaq/windows-index.htmWhy was Python created in the first place?http://effbot.org/pyfaq/why-was-python-created-in-the-first-place.htmWhy must 'self' be used explicitly in method definitions and calls?http://effbot.org/pyfaq/why-must-self-be-used-explicitly-in-method-definitions-and-calls.htmWhy must dictionary keys be immutable?http://effbot.org/pyfaq/why-must-dictionary-keys-be-immutable.htmWhy is there no goto?http://effbot.org/pyfaq/why-is-there-no-goto.htmWhy isn't there a switch or case statement in Python?http://effbot.org/pyfaq/why-isn-t-there-a-switch-or-case-statement-in-python.htmWhy isn't all memory freed when Python exits?http://effbot.org/pyfaq/why-isn-t-all-memory-freed-when-python-exits.htmWhy is join() a string method instead of a list or tuple method?http://effbot.org/pyfaq/why-is-join-a-string-method-instead-of-a-list-or-tuple-method.htmWhy is it called Python?http://effbot.org/pyfaq/why-is-it-called-python.htmWhy is cPickle so slow?http://effbot.org/pyfaq/why-is-cpickle-so-slow.htmWhy don't my signal handlers work?http://effbot.org/pyfaq/why-don-t-my-signal-handlers-work.htmWhy do my Tkinter images not appear?http://effbot.org/pyfaq/why-do-my-tkinter-images-not-appear.htmWhy does Python use methods for some functionality (e.g. list.index()) but functions for other (e.g. len(list))?http://effbot.org/pyfaq/why-does-python-use-methods-for-some-functionality-e-g-list-index-but-functions-for-other-e-g-len-list.htmWhy does Python use indentation for grouping of statements?http://effbot.org/pyfaq/why-does-python-use-indentation-for-grouping-of-statements.htmWhy does Python sometimes take so long to start?http://effbot.org/pyfaq/why-does-python-sometimes-take-so-long-to-start.htmWhy doesn't Python release the memory when I delete a large object?http://effbot.org/pyfaq/why-doesnt-python-release-the-memory-when-i-delete-a-large-object.htmWhy doesn't Python have a "with" statement like some other languages?http://effbot.org/pyfaq/why-doesn-t-python-have-a-with-statement-like-some-other-languages.htmWhy doesn't os.popen() work in PythonWin on NT?http://effbot.org/pyfaq/why-doesn-t-os-popen-work-in-pythonwin-on-nt.htmWhy doesn't os.popen() and win32pipe.popen() work on Win9x?http://effbot.org/pyfaq/why-doesn-t-os-popen-win32pipe-popen-work-on-win9x.htmWhy doesn't list.sort() return the sorted list?http://effbot.org/pyfaq/why-doesn-t-list-sort-return-the-sorted-list.htmWhy doesn't closing sys.stdout (stdin, stderr) really close it?http://effbot.org/pyfaq/why-doesn-t-closing-sys-stdout-stdin-stderr-really-close-it.htmWhy does my C extension suddenly crash under 2.5?http://effbot.org/pyfaq/why-does-my-c-extension-suddenly-crash-under-2.5.htmWhy does -22 / 10 return -3?http://effbot.org/pyfaq/why-does-22-10-return-3.htmWhy can't raw strings (r-strings) end with a backslash?http://effbot.org/pyfaq/why-can-t-raw-strings-r-strings-end-with-a-backslash.htmWhy can't lambda forms contain statements?http://effbot.org/pyfaq/why-can-t-lambda-forms-contain-statements.htmWhy can't I use an assignment in an expression?http://effbot.org/pyfaq/why-can-t-i-use-an-assignment-in-an-expression.htmWhy are there separate tuple and list data types?http://effbot.org/pyfaq/why-are-there-separate-tuple-and-list-data-types.htmWhy are Python strings immutable?http://effbot.org/pyfaq/why-are-python-strings-immutable.htmWhy are floating point calculations so inaccurate?http://effbot.org/pyfaq/why-are-floating-point-calculations-so-inaccurate.htmWhy are default values shared between objects?http://effbot.org/pyfaq/why-are-default-values-shared-between-objects.htmWhy are colons required for the if/while/def/class statements?http://effbot.org/pyfaq/why-are-colons-required-for-the-if-while-def-class-statements.htmWhy am I getting strange results with simple arithmetic operations?http://effbot.org/pyfaq/why-am-i-getting-strange-results-with-simple-arithmetic-operations.htmWhere is the math.py (socket.py, regex.py, etc.) source file?http://effbot.org/pyfaq/where-is-the-math-py-socket-py-regex-py-etc-source-file.htmWhere is Freeze for Windows?http://effbot.org/pyfaq/where-is-freeze-for-windows.htmWhere in the world is www.python.org located?http://effbot.org/pyfaq/where-in-the-world-is-www-python-org-located.htmWhere do nested functions live?http://effbot.org/pyfaq/where-do-nested-functions-live.htmWhere do I start if I want to learn about the CPython implementation?http://effbot.org/pyfaq/where-do-i-start-if-i-want-to-learn-about-the-cpython-implementation.htmWhen importing module X, why do I get "undefined symbol: PyUnicodeUCS2*"?http://effbot.org/pyfaq/when-importing-module-x-why-do-i-get-undefined-symbol-pyunicodeucs2.htmWhen I edit an imported module and reimport it, the changes don't show up. Why does this happen?http://effbot.org/pyfaq/when-i-edit-an-imported-module-and-reimport-it-the-changes-don-t-show-up-why-does-this-happen.htmWhat WWW tools are there for Python?http://effbot.org/pyfaq/what-www-tools-are-there-for-python.htmWhat platform-specific GUI toolkits exist for Python?http://effbot.org/pyfaq/what-platform-specific-gui-toolkits-exist-for-python.htmWhat platform-independent GUI toolkits exist for Python?http://effbot.org/pyfaq/what-platform-independent-gui-toolkits-exist-for-python.htmWhat new developments are expected for Python in the future?http://effbot.org/pyfaq/what-new-developments-are-expected-for-python-in-the-future.htmWhat module should I use to help with generating HTML?http://effbot.org/pyfaq/what-module-should-i-use-to-help-with-generating-html.htmWhat kinds of global value mutation are thread-safe?http://effbot.org/pyfaq/what-kinds-of-global-value-mutation-are-thread-safe.htm