Python-2.7.11
Introduction to Python 2
The Python 2 package contains the
Python development environment. It
is useful for object-oriented programming, writing scripts,
prototyping large programs or developing entire applications. This
version is for backward compatibility with other dependent
packages.
This package is known to build and work properly using an LFS-7.9
platform.
Package Information
Additional Downloads
Optional HTML Documentation
Python 2 Dependencies
Recommended
libffi-3.2.1
Optional
BlueZ-5.37
and Valgrind-3.11.0
Optional (For Additional Modules)
OpenSSL-1.0.2g, SQLite-3.11.0 and
Tk-8.6.4
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/Python
Installation of Python 2
Install Python 2 by running the
following commands:
./configure --prefix=/usr \
--enable-shared \
--with-system-expat \
--with-system-ffi \
--enable-unicode=ucs4 &&
make
To test the results, issue: make -k
test. One test fails for unknown reasons.
Now, as the root
user:
make install &&
chmod -v 755 /usr/lib/libpython2.7.so.1.0
Since Python 2 is in maintenance
mode, and Python 3 is recommended
by upstream for development, you probably do not need to install
the documentation. However, if you still want to install
documentation for both Python
versions, be sure to define the PYTHONDOCS
variable for the version you want to use,
each time you need to consult the documentation. If you have
downloaded the preformatted documentation from http://docs.python.org/download.html,
install it as the root
user:
install -v -dm755 /usr/share/doc/python-2.7.11 &&
tar --strip-components=1 \
--no-same-owner \
--directory /usr/share/doc/python-2.7.11 \
-xvf ../python-2.7.11-docs-html.tar.bz2 &&
find /usr/share/doc/python-2.7.11 -type d -exec chmod 0755 {} \; &&
find /usr/share/doc/python-2.7.11 -type f -exec chmod 0644 {} \;
Command Explanations
--with-system-expat
: This switch
enables linking against system version of Expat.
--with-system-ffi
: This switch enables
linking against system version of libffi. Remove if you have not installed
libffi-3.2.1.
--enable-unicode=ucs4
: This
switch enables 32bit Unicode support in Python.
--with-dbmliborder=bdb:gdbm:ndbm
: Use
this switch if you want to build Python DBM Module against Berkeley DB instead of GDBM.
chmod ...: Fix
permissions for libraries to be consistent with other libraries.
Configuring Python 2
In order for python
to find the installed documentation, you must add the following
environment variable to individual user's or the system's profile:
export PYTHONDOCS=/usr/share/doc/python-2.7.11
Contents
Installed Programs:
2to3, pydoc, python (symlink),
python-config (symlink), python2 (symlink), python2-config
(symlink), python2.7, python2.7-config, smtpd.py, and
idle
Installed Library:
libpython2.7.so
Installed Directories:
/usr/{include,lib}/python2.7 and
/usr/share/doc/python-2.7.11
Short Descriptions
2to3
|
is a Python program that
reads Python 2.x source
code and applies a series of fixers to transform it into
valid Python 3.x code.
|
idle
|
is a wrapper script that opens a Python aware GUI editor. For this
script to run, you must have installed Tk before Python so that the Tkinter
Python module is built.
|
pydoc
|
is the Python
documentation tool.
|
python
|
is an interpreted, interactive, object-oriented
programming language.
|
python2.7
|
is a version-specific name for the python program.
|
smtpd.py
|
is an SMTP proxy implemented in Python.
|
Last updated on 2016-02-21 12:38:55 -0800