Python modules listed in Python Modules have dependencies that are not referenced by other packages in SLFS. These dependencies are listed here. They will not get updated on regular basis, unless a more recent version is needed.
![[Important]](../images/important.png)
In BLFS and SLFS, we normally build and install Python 3 modules
with pip3. Please
take care that the pip3
install commands in the book should be run as
root unless it's for a Python
virtual environment. Running pip3
install as a non-root user may seem to work fine, but it will
cause the installed module to be inaccessible by other users.
pip3 install will
not reinstall an already installed module by default. For using
the pip3 install
command to upgrade a module (for example, from meson-0.61.3 to
meson-0.62.0), insert --upgrade into the command line. If
it's really necessary to downgrade a module or reinstall the same
version for some reason, insert --force-reinstall into the command
line.
The structlog module offers an easy solution to logging.
Build the module:
pip3 wheel -w dist --no-build-isolation --no-deps --no-cache-dir $PWD
Now, as the root user:
pip3 install --no-index --find-links=dist --no-cache-dir --no-user structlog
-w dist: Builds the
appropriate “wheel” for this module in the directory
dist.
--no-build-isolation:
Tells pip3 to run
the build in the system environment instead of creating a
temporary build environment.
--no-deps: Prevents
pip3 from building
wheels for the project's dependencies.
--no-index: Ignores the
package index (only looking at --find-links URLs instead).
--find-links dist: Looks
for links to archives such as wheel (.whl) files in the directory dist.
--no-cache-dir: Disables
the cache to prevent a warning when installing as the
root user.
--no-user: Prevent
mistakenly running the install command as a non-root user.
--upgrade: Upgrade the package to the
newest available version. This option is used with the install
command if a version of the package is already installed.
--force-reinstall: Reinstall the
package even if it is up-to-date. This option is used with the
install command if reinstalling the package or reverting to an
earlier version of the package.
--no-deps: Do not install package
dependencies. This option may be needed with the --upgrade or --force-reinstall options.
The platformdirs module provides standard directory paths on different platforms so that data is saved to the right path.
Build the module:
pip3 wheel -w dist --no-build-isolation --no-deps --no-cache-dir $PWD
Now, as the root user:
pip3 install --no-index --find-links=dist --no-cache-dir --no-user platformdirs
-w dist: Builds the
appropriate “wheel” for this module in the directory
dist.
--no-build-isolation:
Tells pip3 to run
the build in the system environment instead of creating a
temporary build environment.
--no-deps: Prevents
pip3 from building
wheels for the project's dependencies.
--no-index: Ignores the
package index (only looking at --find-links URLs instead).
--find-links dist: Looks
for links to archives such as wheel (.whl) files in the directory dist.
--no-cache-dir: Disables
the cache to prevent a warning when installing as the
root user.
--no-user: Prevent
mistakenly running the install command as a non-root user.
--upgrade: Upgrade the package to the
newest available version. This option is used with the install
command if a version of the package is already installed.
--force-reinstall: Reinstall the
package even if it is up-to-date. This option is used with the
install command if reinstalling the package or reverting to an
earlier version of the package.
--no-deps: Do not install package
dependencies. This option may be needed with the --upgrade or --force-reinstall options.
The pycurl module offers access to cURL in Python scripts.
Build the module:
pip3 wheel -w dist --no-build-isolation --no-deps --no-cache-dir $PWD
Now, as the root user:
pip3 install --no-index --find-links=dist --no-cache-dir --no-user pycurl &&
mv -v /usr/share/doc/pycurl{,-7.45.6}
-w dist: Builds the
appropriate “wheel” for this module in the directory
dist.
--no-build-isolation:
Tells pip3 to run
the build in the system environment instead of creating a
temporary build environment.
--no-deps: Prevents
pip3 from building
wheels for the project's dependencies.
--no-index: Ignores the
package index (only looking at --find-links URLs instead).
--find-links dist: Looks
for links to archives such as wheel (.whl) files in the directory dist.
--no-cache-dir: Disables
the cache to prevent a warning when installing as the
root user.
--no-user: Prevent
mistakenly running the install command as a non-root user.
--upgrade: Upgrade the package to the
newest available version. This option is used with the install
command if a version of the package is already installed.
--force-reinstall: Reinstall the
package even if it is up-to-date. This option is used with the
install command if reinstalling the package or reverting to an
earlier version of the package.
--no-deps: Do not install package
dependencies. This option may be needed with the --upgrade or --force-reinstall options.
The toml module can process and convert things from and to TOML.
Build the module:
pip3 wheel -w dist --no-build-isolation --no-deps --no-cache-dir $PWD
Now, as the root user:
pip3 install --no-index --find-links=dist --no-cache-dir --no-user toml
-w dist: Builds the
appropriate “wheel” for this module in the directory
dist.
--no-build-isolation:
Tells pip3 to run
the build in the system environment instead of creating a
temporary build environment.
--no-deps: Prevents
pip3 from building
wheels for the project's dependencies.
--no-index: Ignores the
package index (only looking at --find-links URLs instead).
--find-links dist: Looks
for links to archives such as wheel (.whl) files in the directory dist.
--no-cache-dir: Disables
the cache to prevent a warning when installing as the
root user.
--no-user: Prevent
mistakenly running the install command as a non-root user.
--upgrade: Upgrade the package to the
newest available version. This option is used with the install
command if a version of the package is already installed.
--force-reinstall: Reinstall the
package even if it is up-to-date. This option is used with the
install command if reinstalling the package or reverting to an
earlier version of the package.
--no-deps: Do not install package
dependencies. This option may be needed with the --upgrade or --force-reinstall options.
The tornado module offers an easy solution to logging.
pycurl-7.45.6 (for the cURL client)
Build the module:
pip3 wheel -w dist --no-build-isolation --no-deps --no-cache-dir $PWD
Now, as the root user:
pip3 install --no-index --find-links=dist --no-cache-dir --no-user tornado
-w dist: Builds the
appropriate “wheel” for this module in the directory
dist.
--no-build-isolation:
Tells pip3 to run
the build in the system environment instead of creating a
temporary build environment.
--no-deps: Prevents
pip3 from building
wheels for the project's dependencies.
--no-index: Ignores the
package index (only looking at --find-links URLs instead).
--find-links dist: Looks
for links to archives such as wheel (.whl) files in the directory dist.
--no-cache-dir: Disables
the cache to prevent a warning when installing as the
root user.
--no-user: Prevent
mistakenly running the install command as a non-root user.
--upgrade: Upgrade the package to the
newest available version. This option is used with the install
command if a version of the package is already installed.
--force-reinstall: Reinstall the
package even if it is up-to-date. This option is used with the
install command if reinstalling the package or reverting to an
earlier version of the package.
--no-deps: Do not install package
dependencies. This option may be needed with the --upgrade or --force-reinstall options.