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.. highlightlang:: none
.. _using-on-windows:
*************************
Using Python on Windows
*************************
.. sectionauthor:: Robert Lehmann <lehmannro@gmail.com>
.. sectionauthor:: Steve Dower <steve.dower@microsoft.com>
This document aims to give an overview of Windows-specific behaviour you should
know about when using Python on Microsoft Windows.
.. XXX (ncoghlan)
This looks rather stale to me...
Installing Python
=================
Unlike most Unix systems and services, Windows does not include a system
supported installation of Python. To make Python available, the CPython team
has compiled Windows installers (MSI packages) with every `release
<https://www.python.org/download/releases/>`_ for many years. These installers
are primarily intended to add a system-wide installation of Python, with the
core interpreter and library being shared by all application. Non-shared
layouts of the Python interpreter may also be created with the same installer,
however, the released installer is not intended for embedding in other
installers.
Installation Steps
------------------
Four Python 3.5 installers are available for download - two each for the 32-bit
and 64-bit versions of the interpreter. The *web installer* is a small initial
download, and it will automatically download the required components as
necessary. The *offline installer* includes the components necessary for a
default installation and only requires an internet connection for optional
features. See :ref:`install-layout-option` for other ways to avoid downloading
during installation.
After starting the installer, one of three options may be selected:
.. image:: win_installer.png
If you select "Install for All Users":
* You may be required to provide administrative credentials or approval
* Python will be installed into your Program Files directory
* The :ref:`launcher` will be installed into your Windows directory
* The standard library, test suite, launcher and pip will be installed
* After installation, the standard library will be pre-compiled to bytecode
* If selected, the install directory will be added to :envvar:`PATH`
If you select "Install Just for Me":
* You will *not* need to be an administrator
* Python will be installed into your user directory
* The :ref:`launcher` will *also* be installed into your user directory
* The standard library, test suite, launcher and pip will be installed
* If selected, the install directory will be added to :envvar:`PATH`
Selecting "Customize installation" will allow you to select the features to
install, the installation location and other options or post-install actions.
To install debugging symbols or binaries, you will need to use this option.
.. _install-quiet-option:
Installing Without UI
---------------------
All of the options available in the installer UI can also be specified from the
command line, allowing scripted installers to replicate an installation on many
machines without user interaction. These options may also be set without
suppressing the UI in order to change some of the defaults.
To completely hide the installer UI and install Python silently, pass the
``/quiet`` (``/q``) option. To skip past the user interaction but still display
progress and errors, pass the ``/passive`` (``/p``) option. The ``/uninstall``
option may be passed to immediately begin removing Python - no prompt will be
displayed.
All other options are passed as ``name=value``, where the value is usually
``0`` to disable a feature, ``1`` to enable a feature, or a path. The full list
of available options is shown below.
+---------------------------+--------------------------------------+--------------------------+
| Name | Description | Default |
+===========================+======================================+==========================+
| InstallAllUsers | Perform a system-wide installation. | 1 |
+---------------------------+--------------------------------------+--------------------------+
| TargetDir | The installation directory | Selected based on |
| | | InstallAllUsers |
+---------------------------+--------------------------------------+--------------------------+
| DefaultAllUsersTargetDir | The default installation directory | :file:`%ProgramFiles%\\\ |
| | for all-user installs | Python X.Y` or :file:`\ |
| | | %ProgramFiles(x86)%\\\ |
| | | Python X.Y` |
+---------------------------+--------------------------------------+--------------------------+
| DefaultJustForMeTargetDir | The default install directory for | :file:`%LocalAppData%\\\ |
| | just-for-me installs | Programs\\PythonXY` or |
| | | :file:`%LocalAppData%\\\ |
| | | Programs\\PythonXY-32` |
+---------------------------+--------------------------------------+--------------------------+
| DefaultCustomTargetDir | The default custom install directory | (empty) |
| | displayed in the UI | |
+---------------------------+--------------------------------------+--------------------------+
| AssociateFiles | Create file associations if the | 1 |
| | launcher is also installed. | |
+---------------------------+--------------------------------------+--------------------------+
| CompileAll | Compile all ``.py`` files to | 0 |
| | ``.pyc`` and ``.pyo``. | |
+---------------------------+--------------------------------------+--------------------------+
| PrependPath | Add install and Scripts directories | 0 |
| | tho :envvar:`PATH` and ``.PY`` to | |
| | :envvar:`PATHEXT` | |
+---------------------------+--------------------------------------+--------------------------+
| Include_doc | Install Python manual | 1 |
+---------------------------+--------------------------------------+--------------------------+
| Include_debug | Install debug binaries | 0 |
+---------------------------+--------------------------------------+--------------------------+
| Include_dev | Install developer headers and | 1 |
| | libraries | |
+---------------------------+--------------------------------------+--------------------------+
| Include_exe | Install :file:`python.exe` and | 1 |
| | related files | |
+---------------------------+--------------------------------------+--------------------------+
| Include_launcher | Install :ref:`launcher`. | 1 |
+---------------------------+--------------------------------------+--------------------------+
| Include_lib | Install standard library and | 1 |
| | extension modules | |
+---------------------------+--------------------------------------+--------------------------+
| Include_pip | Install bundled pip and setuptools | 1 |
+---------------------------+--------------------------------------+--------------------------+
| Include_symbols | Install debugging symbols (`*`.pdb) | 0 |
+---------------------------+--------------------------------------+--------------------------+
| Include_tcltk | Install Tcl/Tk support and IDLE | 1 |
+---------------------------+--------------------------------------+--------------------------+
| Include_test | Install standard library test suite | 1 |
+---------------------------+--------------------------------------+--------------------------+
| Include_tools | Install utility scripts | 1 |
+---------------------------+--------------------------------------+--------------------------+
| SimpleInstall | Disable most install UI | 0 |
+---------------------------+--------------------------------------+--------------------------+
For example, to silently install a default, system-wide Python installation,
you could use the following command (from an elevated command prompt)::
python-3.5.0.exe /quiet InstallAllUsers=1 PrependPath=1 Include_test=0
To allow users to easily install a personal copy of Python without the test
suite, you could provide a shortcut with the following command::
python-3.5.0.exe /passive InstallAllUsers=0 Include_launcher=0 Include_test=0 SimpleInstall=1
(Note that omitting the launcher also omits file associations, and is only
recommended for per-user installs when there is also a system-wide installation
that included the launcher.)
.. _install-layout-option:
Installing Without Downloading
------------------------------
As some features of Python are not included in the initial installer download,
selecting those features may require an internet connection. To avoid this
need, all possible components may be downloaded on-demand to create a complete
*layout* that will no longer require an internet connection regardless of the
selected features. Note that this download may be bigger than required, but
where a large number of installations are going to be performed it is very
useful to have a locally cached copy.
Execute the following command from Command Prompt to download all possible
required files. Remember to substitute ``python-3.5.0.exe`` for the actual
name of your installer, and to create layouts in their own directories to
avoid collisions between files with the same name.
::
python-3.5.0.exe /layout [optional target directory]
You may also specify the ``/quiet`` option to hide the progress display.
Other Platforms
---------------
With ongoing development of Python, some platforms that used to be supported
earlier are no longer supported (due to the lack of users or developers).
Check :pep:`11` for details on all unsupported platforms.
* `Windows CE <http://pythonce.sourceforge.net/>`_ is still supported.
* The `Cygwin <http://cygwin.com/>`_ installer offers to install the Python
interpreter as well (cf. `Cygwin package source
<ftp://ftp.uni-erlangen.de/pub/pc/gnuwin32/cygwin/mirrors/cygnus/
release/python>`_, `Maintainer releases
<http://www.tishler.net/jason/software/python/>`_)
See `Python for Windows <https://www.python.org/download/windows/>`_
for detailed information about platforms with pre-compiled installers.
.. seealso::
`Python on XP <http://www.richarddooling.com/index.php/2006/03/14/python-on-xp-7-minutes-to-hello-world/>`_
"7 Minutes to "Hello World!""
by Richard Dooling, 2006
`Installing on Windows <http://www.diveintopython.net/installing_python/windows.html>`_
in "`Dive into Python: Python from novice to pro
<http://www.diveintopython.net/>`_"
by Mark Pilgrim, 2004,
ISBN 1-59059-356-1
`For Windows users <http://www.swaroopch.com/notes/python/#install_windows>`_
in "Installing Python"
in "`A Byte of Python <http://www.swaroopch.com/notes/python/>`_"
by Swaroop C H, 2003
Alternative bundles
===================
Besides the standard CPython distribution, there are modified packages including
additional functionality. The following is a list of popular versions and their
key features:
`ActivePython <http://www.activestate.com/activepython/>`_
Installer with multi-platform compatibility, documentation, PyWin32
`Anaconda <http://www.continuum.io/downloads/>`_
Popular scientific modules (such as numpy, scipy and pandas) and the
``conda`` package manager.
`Canopy <https://www.enthought.com/products/canopy/>`_
A "comprehensive Python analysis environment" with editors and other
development tools.
`WinPython <https://winpython.github.io/>`_
Windows-specific distribution with prebuilt scientific packages and
tools for building packages.
Note that these packages may not include the latest versions of Python or
other libraries, and are not maintained or supported by the core Python team.
Configuring Python
==================
To run Python conveniently from a command prompt, you might consider changing
some default environment variables in Windows. While the installer provides an
option to configure the PATH and PATHEXT variables for you, this is only
reliable for a single, system-wide installation. If you regularly use multiple
versions of Python, consider using the :ref:`launcher`.
.. _setting-envvars:
Excursus: Setting environment variables
---------------------------------------
Windows allows environment variables to be configured permanently at both the
User level and the System level, or temporarily in a command prompt.
To temporarily set environment variables, open Command Prompt and use the
:command:`set` command::
C:\>set PATH=C:\Program Files\Python 3.5;%PATH%
C:\>set PYTHONPATH=%PYTHONPATH%;C:\My_python_lib
C:\>python
These changes will apply to any further commands executed in that console, and
will be inherited by any applications started from the console.
Including the variable name within percent signs will expand to the existing
value, allowing you to add your new value at either the start or the end.
Modifying :envvar:`PATH` by adding the directory containing
:program:`python.exe` to the start is a common way to ensure the correct version
of Python is launched.
To permanently modify the default environment variables, click Start and search
for 'edit environment variables', or open System properties, :guilabel:`Advanced
system settings` and click the :guilabel:`Environment Variables` button.
In this dialog, you can add or modify User and System variables. To change
System variables, you need non-restricted access to your machine
(i.e. Administrator rights).
.. note::
Windows will concatenate User variables *after* System variables, which may
cause unexpected results when modifying :envvar:`PATH`.
The :envvar:`PYTHONPATH` variable is used by all versions of Python 2 and
Python 3, so you should not permanently configure this variable unless it
only includes code that is compatible all of your installed Python
versions.
.. seealso::
http://support.microsoft.com/kb/100843
Environment variables in Windows NT
http://technet.microsoft.com/en-us/library/cc754250.aspx
The SET command, for temporarily modifying environment variables
http://technet.microsoft.com/en-us/library/cc755104.aspx
The SETX command, for permanently modifying environment variables
http://support.microsoft.com/kb/310519
How To Manage Environment Variables in Windows XP
http://www.chem.gla.ac.uk/~louis/software/faq/q1.html
Setting Environment variables, Louis J. Farrugia
.. _windows-path-mod:
Finding the Python executable
-----------------------------
.. versionchanged:: 3.5
Besides using the automatically created start menu entry for the Python
interpreter, you might want to start Python in the command prompt. The
installer for Python 3.5 and later has an option to set that up for you.
On the first page of the installer, an option labelled "Add Python 3.5 to
PATH" can be selected to have the installer add the install location into the
:envvar:`PATH`. The location of the :file:`Scripts\\` folder is also added.
This allows you to type :command:`python` to run the interpreter, and
:command:`pip` or . Thus, you can also execute your
scripts with command line options, see :ref:`using-on-cmdline` documentation.
If you don't enable this option at install time, you can always re-run the
installer, select Modify, and enable it. Alternatively, you can manually
modify the :envvar:`PATH` using the directions in :ref:`setting-envvars`. You
need to set your :envvar:`PATH` environment variable to include the directory
of your Python installation, delimited by a semicolon from other entries. An
example variable could look like this (assuming the first two entries already
existed)::
C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\Python 3.5
.. _launcher:
Python Launcher for Windows
===========================
.. versionadded:: 3.3
The Python launcher for Windows is a utility which aids in locating and
executing of different Python versions. It allows scripts (or the
command-line) to indicate a preference for a specific Python version, and
will locate and execute that version.
Unlike the :envvar:`PATH` variable, the launcher will correctly select the most
appropriate version of Python. It will prefer per-user installations over
system-wide ones, and orders by language version rather than using the most
recently installed version.
Getting started
---------------
From the command-line
^^^^^^^^^^^^^^^^^^^^^
System-wide installations of Python 3.3 and later will put the launcher on your
:envvar:`PATH`. The launcher is compatible with all available versions of
Python, so it does not matter which version is installed. To check that the
launcher is available, execute the following command in Command Prompt:
::
py
You should find that the latest version of Python 2.x you have installed is
started - it can be exited as normal, and any additional command-line
arguments specified will be sent directly to Python.
If you have multiple versions of Python 2.x installed (e.g., 2.6 and 2.7) you
will have noticed that Python 2.7 was started - to launch Python 2.6, try the
command:
::
py -2.6
If you have a Python 3.x installed, try the command:
::
py -3
You should find the latest version of Python 3.x starts.
If you see the following error, you do not have the launcher installed:
::
'py' is not recognized as an internal or external command,
operable program or batch file.
Per-user installations of Python do not add the launcher to :envvar:`PATH`
unless the option was selected on installation.
Virtual environments
^^^^^^^^^^^^^^^^^^^^
.. versionadded:: 3.5
If the launcher is run with no explicit Python version specification, and a
virtual environment (created with the standard library :mod:`venv` module or
the external ``virtualenv`` tool) active, the launcher will run the virtual
environment's interpreter rather than the global one. To run the global
interpreter, either deactivate the virtual environment, or explicitly specify
the global Python version.
From a script
^^^^^^^^^^^^^
Let's create a test Python script - create a file called ``hello.py`` with the
following contents
::
#! python
import sys
sys.stdout.write("hello from Python %s\n" % (sys.version,))
From the directory in which hello.py lives, execute the command:
::
py hello.py
You should notice the version number of your latest Python 2.x installation
is printed. Now try changing the first line to be:
::
#! python3
Re-executing the command should now print the latest Python 3.x information.
As with the above command-line examples, you can specify a more explicit
version qualifier. Assuming you have Python 2.6 installed, try changing the
first line to ``#! python2.6`` and you should find the 2.6 version
information printed.
From file associations
^^^^^^^^^^^^^^^^^^^^^^
The launcher should have been associated with Python files (i.e. ``.py``,
``.pyw``, ``.pyc``, ``.pyo`` files) when it was installed. This means that
when you double-click on one of these files from Windows explorer the launcher
will be used, and therefore you can use the same facilities described above to
have the script specify the version which should be used.
The key benefit of this is that a single launcher can support multiple Python
versions at the same time depending on the contents of the first line.
Shebang Lines
-------------
If the first line of a script file starts with ``#!``, it is known as a
"shebang" line. Linux and other Unix like operating systems have native
support for such lines and are commonly used on such systems to indicate how
a script should be executed. This launcher allows the same facilities to be
using with Python scripts on Windows and the examples above demonstrate their
use.
To allow shebang lines in Python scripts to be portable between Unix and
Windows, this launcher supports a number of 'virtual' commands to specify
which interpreter to use. The supported virtual commands are:
* ``/usr/bin/env python``
* ``/usr/bin/python``
* ``/usr/local/bin/python``
* ``python``
For example, if the first line of your script starts with
::
#! /usr/bin/python
The default Python will be located and used. As many Python scripts written
to work on Unix will already have this line, you should find these scripts can
be used by the launcher without modification. If you are writing a new script
on Windows which you hope will be useful on Unix, you should use one of the
shebang lines starting with ``/usr``.
Any of the above virtual commands can be suffixed with an explicit version
(either just the major version, or the major and minor version) - for example
``/usr/bin/python2.7`` - which will cause that specific version to be located
and used.
The ``/usr/bin/env`` form of shebang line has one further special property.
Before looking for installed Python interpreters, this form will search the
executable :envvar:`PATH` for a Python executable. This corresponds to the
behaviour of the Unix ``env`` program, which performs a :envvar:`PATH` search.
Arguments in shebang lines
--------------------------
The shebang lines can also specify additional options to be passed to the
Python interpreter. For example, if you have a shebang line:
::
#! /usr/bin/python -v
Then Python will be started with the ``-v`` option
Customization
-------------
Customization via INI files
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Two .ini files will be searched by the launcher - ``py.ini`` in the current
user's "application data" directory (i.e. the directory returned by calling the
Windows function SHGetFolderPath with CSIDL_LOCAL_APPDATA) and ``py.ini`` in the
same directory as the launcher. The same .ini files are used for both the
'console' version of the launcher (i.e. py.exe) and for the 'windows' version
(i.e. pyw.exe)
Customization specified in the "application directory" will have precedence over
the one next to the executable, so a user, who may not have write access to the
.ini file next to the launcher, can override commands in that global .ini file)
Customizing default Python versions
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
In some cases, a version qualifier can be included in a command to dictate
which version of Python will be used by the command. A version qualifier
starts with a major version number and can optionally be followed by a period
('.') and a minor version specifier. If the minor qualifier is specified, it
may optionally be followed by "-32" to indicate the 32-bit implementation of
that version be used.
For example, a shebang line of ``#!python`` has no version qualifier, while
``#!python3`` has a version qualifier which specifies only a major version.
If no version qualifiers are found in a command, the environment variable
``PY_PYTHON`` can be set to specify the default version qualifier - the default
value is "2". Note this value could specify just a major version (e.g. "2") or
a major.minor qualifier (e.g. "2.6"), or even major.minor-32.
If no minor version qualifiers are found, the environment variable
``PY_PYTHON{major}`` (where ``{major}`` is the current major version qualifier
as determined above) can be set to specify the full version. If no such option
is found, the launcher will enumerate the installed Python versions and use
the latest minor release found for the major version, which is likely,
although not guaranteed, to be the most recently installed version in that
family.
On 64-bit Windows with both 32-bit and 64-bit implementations of the same
(major.minor) Python version installed, the 64-bit version will always be
preferred. This will be true for both 32-bit and 64-bit implementations of the
launcher - a 32-bit launcher will prefer to execute a 64-bit Python installation
of the specified version if available. This is so the behavior of the launcher
can be predicted knowing only what versions are installed on the PC and
without regard to the order in which they were installed (i.e., without knowing
whether a 32 or 64-bit version of Python and corresponding launcher was
installed last). As noted above, an optional "-32" suffix can be used on a
version specifier to change this behaviour.
Examples:
* If no relevant options are set, the commands ``python`` and
``python2`` will use the latest Python 2.x version installed and
the command ``python3`` will use the latest Python 3.x installed.
* The commands ``python3.1`` and ``python2.7`` will not consult any
options at all as the versions are fully specified.
* If ``PY_PYTHON=3``, the commands ``python`` and ``python3`` will both use
the latest installed Python 3 version.
* If ``PY_PYTHON=3.1-32``, the command ``python`` will use the 32-bit
implementation of 3.1 whereas the command ``python3`` will use the latest
installed Python (PY_PYTHON was not considered at all as a major
version was specified.)
* If ``PY_PYTHON=3`` and ``PY_PYTHON3=3.1``, the commands
``python`` and ``python3`` will both use specifically 3.1
In addition to environment variables, the same settings can be configured
in the .INI file used by the launcher. The section in the INI file is
called ``[defaults]`` and the key name will be the same as the
environment variables without the leading ``PY_`` prefix (and note that
the key names in the INI file are case insensitive.) The contents of
an environment variable will override things specified in the INI file.
For example:
* Setting ``PY_PYTHON=3.1`` is equivalent to the INI file containing:
::
[defaults]
python=3.1
* Setting ``PY_PYTHON=3`` and ``PY_PYTHON3=3.1`` is equivalent to the INI file
containing:
::
[defaults]
python=3
python3=3.1
Diagnostics
-----------
If an environment variable ``PYLAUNCH_DEBUG`` is set (to any value), the
launcher will print diagnostic information to stderr (i.e. to the console).
While this information manages to be simultaneously verbose *and* terse, it
should allow you to see what versions of Python were located, why a
particular version was chosen and the exact command-line used to execute the
target Python.
Finding modules
===============
Python usually stores its library (and thereby your site-packages folder) in the
installation directory. So, if you had installed Python to
:file:`C:\\Python\\`, the default library would reside in
:file:`C:\\Python\\Lib\\` and third-party modules should be stored in
:file:`C:\\Python\\Lib\\site-packages\\`.
This is how :data:`sys.path` is populated on Windows:
* An empty entry is added at the start, which corresponds to the current
directory.
* If the environment variable :envvar:`PYTHONPATH` exists, as described in
:ref:`using-on-envvars`, its entries are added next. Note that on Windows,
paths in this variable must be separated by semicolons, to distinguish them
from the colon used in drive identifiers (``C:\`` etc.).
* Additional "application paths" can be added in the registry as subkeys of
:samp:`\\SOFTWARE\\Python\\PythonCore\\{version}\\PythonPath` under both the
``HKEY_CURRENT_USER`` and ``HKEY_LOCAL_MACHINE`` hives. Subkeys which have
semicolon-delimited path strings as their default value will cause each path
to be added to :data:`sys.path`. (Note that all known installers only use
HKLM, so HKCU is typically empty.)
* If the environment variable :envvar:`PYTHONHOME` is set, it is assumed as
"Python Home". Otherwise, the path of the main Python executable is used to
locate a "landmark file" (``Lib\os.py``) to deduce the "Python Home". If a
Python home is found, the relevant sub-directories added to :data:`sys.path`
(``Lib``, ``plat-win``, etc) are based on that folder. Otherwise, the core
Python path is constructed from the PythonPath stored in the registry.
* If the Python Home cannot be located, no :envvar:`PYTHONPATH` is specified in
the environment, and no registry entries can be found, a default path with
relative entries is used (e.g. ``.\Lib;.\plat-win``, etc).
The end result of all this is:
* When running :file:`python.exe`, or any other .exe in the main Python
directory (either an installed version, or directly from the PCbuild
directory), the core path is deduced, and the core paths in the registry are
ignored. Other "application paths" in the registry are always read.
* When Python is hosted in another .exe (different directory, embedded via COM,
etc), the "Python Home" will not be deduced, so the core path from the
registry is used. Other "application paths" in the registry are always read.
* If Python can't find its home and there is no registry (eg, frozen .exe, some
very strange installation setup) you get a path with some default, but
relative, paths.
For those who want to bundle Python into their application or distribution, the
following advice will prevent conflicts with other installations:
* If you are loading :file:`python3.dll` or :file:`python35.dll` in your own
executable, explicitly call :c:func:`Py_SetPath` or (at least)
:c:func:`Py_SetProgramName` before :c:func:`Py_Initialize`.
* Clear and/or overwrite :envvar:`PYTHONPATH` and set :envvar:`PYTHONHOME`
before launching :file:`python.exe` from your application.
* If you cannot use the previous suggestions (for example, you are a
distribution that allows people to run :file:`python.exe` directly), ensure
that the landmark file (:file:`Lib\\os.py`) exists in your bundled library.
(Note that it will not be detected inside a ZIP file.)
These will ensure that the files in a system-wide installation will not take
precedence over the copy of the standard library bundled with your application.
Otherwise, your users may experience problems using your application.
Additional modules
==================
Even though Python aims to be portable among all platforms, there are features
that are unique to Windows. A couple of modules, both in the standard library
and external, and snippets exist to use these features.
The Windows-specific standard modules are documented in
:ref:`mswin-specific-services`.
PyWin32
-------
The `PyWin32 <http://python.net/crew/mhammond/win32/>`_ module by Mark Hammond
is a collection of modules for advanced Windows-specific support. This includes
utilities for:
* `Component Object Model <http://www.microsoft.com/com/>`_ (COM)
* Win32 API calls
* Registry
* Event log
* `Microsoft Foundation Classes <http://msdn.microsoft.com/en-us/library/fe1cf721%28VS.80%29.aspx>`_ (MFC)
user interfaces
`PythonWin <http://web.archive.org/web/20060524042422/
https://www.python.org/windows/pythonwin/>`_ is a sample MFC application
shipped with PyWin32. It is an embeddable IDE with a built-in debugger.
.. seealso::
`Win32 How Do I...? <http://timgolden.me.uk/python/win32_how_do_i.html>`_
by Tim Golden
`Python and COM <http://www.boddie.org.uk/python/COM.html>`_
by David and Paul Boddie
cx_Freeze
---------
`cx_Freeze <http://cx-freeze.sourceforge.net/>`_ is a :mod:`distutils`
extension (see :ref:`extending-distutils`) which wraps Python scripts into
executable Windows programs (:file:`{*}.exe` files). When you have done this,
you can distribute your application without requiring your users to install
Python.
WConio
------
Since Python's advanced terminal handling layer, :mod:`curses`, is restricted to
Unix-like systems, there is a library exclusive to Windows as well: Windows
Console I/O for Python.
`WConio <http://newcenturycomputers.net/projects/wconio.html>`_ is a wrapper for
Turbo-C's :file:`CONIO.H`, used to create text user interfaces.
Compiling Python on Windows
===========================
If you want to compile CPython yourself, first thing you should do is get the
`source <https://www.python.org/download/source/>`_. You can download either the
latest release's source or just grab a fresh `checkout
<https://docs.python.org/devguide/setup.html#getting-the-source-code>`_.
The source tree contains a build solution and project files for Microsoft
Visual Studio 2015, which is the compiler used to build the official Python
releases. These files are in the :file:`PCbuild` directory.
Check :file:`PCbuild/readme.txt` for general information on the build process.
For extension modules, consult :ref:`building-on-windows`.
.. seealso::
`Python + Windows + distutils + SWIG + gcc MinGW <http://sebsauvage.net/python/mingw.html>`_
or "Creating Python extensions in C/C++ with SWIG and compiling them with
MinGW gcc under Windows" or "Installing Python extension with distutils
and without Microsoft Visual C++" by Sébastien Sauvage, 2003
`MingW -- Python extensions <http://oldwiki.mingw.org/index.php/Python%20extensions>`_
by Trent Apted et al, 2007
Other resources
===============
.. seealso::
`Python Programming On Win32 <http://shop.oreilly.com/product/9781565926219.do>`_
"Help for Windows Programmers"
by Mark Hammond and Andy Robinson, O'Reilly Media, 2000,
ISBN 1-56592-621-8
`A Python for Windows Tutorial <http://www.imladris.com/Scripts/PythonForWindows.html>`_
by Amanda Birmingham, 2004
:pep:`397` - Python launcher for Windows
The proposal for the launcher to be included in the Python distribution.
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