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...installed version in that family. 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. Command-line handling Only the first command-line ...
...internal structure, eg. """ext_modules is a hash mapping names of C source files (each containing a Python extension module) to a nested hash of information about how to build that module. The allowed keys to this nested hash are: - other_c: other C files that must be compiled and linked with the main C file to create the module - c_libraries: C libraries that must be included in the link ... """ No doubt the ext_mo...
...the Python interpreter for the virtualenv rather than the default system Python. The "default" Python interpreter referred to above is (as per PEP 397) either the latest version of Python installed on the system, or a version configured via the py.ini configuration file. When the user specifies an explicit Python version on the command line, this will always be used (as at present). Impact on Script Launching As well as interactive use, the launcher is used as the Windows file association for...
...ing the filename to the Python interpreter directly. As background, ZIP archives are defined with a footer containing relative offsets from the end of the file. They remain valid when concatenated to the end of any other file. This feature is completely standard and is how self-extracting ZIP archives and the bdist_wininst installer format work. Minimal Tooling: The zipapp Module This PEP also proposes including a module for working with these archives. The module will contain functions for...
...in the real world, where a program's default (no-keep-tmp in this case) might be overridden by a config file, and then overridden again on the command-line. This weakness is currently reflected in all three of my test re-implementations. Internal interfaces Internally, Ripoff works by passing around a single object that contains all the values from the command-line. E.g., the user-selected verbosity level is in options.verbose, and the CD-ROM device file is in options.device. T...
...the following strings: "error" -- turn matching warnings into exceptions "ignore" -- never print matching warnings "always" -- always print matching warnings "default" -- print the first occurrence of matching warnings for each location where the warning is issued "module" -- print the first occurrence of matching warnings for each module where the warning is issued "once" -- print only the first occurrence of matching warnings Since the Warning class is derived from the built-in Exception cl...
...ininstall command in the 2.7 version of CPython were adjusted to create the following chains of symbolic links in the relevant bin directory (the final item listed in the chain is the actual installed binary, preceding items are relative symbolic links): python -> python2 -> python2.7 python-config -> python2-config -> python2.7-config Similar adjustments were made to the macOS binary installer. This feature first appeared in the default installation process in CPython 2.7.3. The i...
...ined in PEP 370 and implemented in Python 2.6/3.0. Since we avoid installing to the system Python we also avoid conflicting with any other packaging system (on Linux systems, for example.) If the user is inside a PEP 405 virtual environment then the pip implementation will be installed into that virtual environment. The bootstrap process will proceed as follows: The user system has Python (3.4+) installed. In the "scripts" directory of the Python installation there is the bootstrap script cal...
...these modules. It is used in projects like IPython (the Scipy Python shell) [4], is included in Debian testing and unstable [5], and since 2007 has had various requests for its inclusion in the standard library [6] [7] [8]. This popularity suggests it may be a valuable addition to the Python libraries. Why aren't getopt and optparse enough? One argument against adding argparse is that there are "already two different option parsing modules in the standard library" [9]. The following is a list ...
...ing Windows Installer Installer Features Python 2.4 is distributed as a Microsoft Installer (MSI) file on Windows. Typically, packages are installed by double-clicking them in the file explorer. However, with the msiexec.exe command line utility, additional features are available, like non-interactive installation and administrative installation. Non-interactive Installation With the command line msiexec /i python<version>.msi installation can be initiated programmati...
...ing Windows Installer Windows Installer Features Python 2.5 is distributed as a Microsoft Installer (MSI) file on Windows. Typically, packages are installed by double-clicking them in the file explorer. However, with the msiexec.exe command line utility, additional features are available, like non-interactive installation and administrative installation. Non-interactive Installation With the command line msiexec /i python<version>.msi installation can be initiated pro...
...Python? System Message: WARNING/2 (<string>, line 111) Block quote ends without a blank line; unexpected unindent. <li />A) The RPMs that start with "python2.3" are built to not interfere with the system Python. They install as "/usr/bin/python2.3" and will not conflict with the system Python unless you are running on a system that ships the a version of Python which has the same major/minor number. <p /> To invoke the interpreter with these packages, you...
...Python? System Message: WARNING/2 (<string>, line 113) Block quote ends without a blank line; unexpected unindent. <li />A) The RPMs that start with "python2.4" are built to not interfere with the system Python. They install as "/usr/bin/python2.4" and will not conflict with the system Python unless you are running on a system that ships the a version of Python which has the same major/minor number. <p /> To invoke the interpreter with these packages, you...
...Python? System Message: WARNING/2 (<string>, line 106) Block quote ends without a blank line; unexpected unindent. <li />A) The RPMs that start with "python2.3" are built to not interfere with the system Python. They install as "/usr/bin/python2.3" and will not conflict with the system Python unless you are running on a system that ships the a version of Python which has the same major/minor number. <p /> To invoke the interpreter with these packages, you...
...independently proposed adding Optik to the standard library. This kicked off a brief thread on python-dev, the outcome of which is that Paul Prescod posted a request for comments to get input from the wider community. Several people chimed in with their opinions, and Guido told us to go off and figure out a solution, then report back to python-dev. Comparing some libraries I decided the only fair way to compare various libraries is to implement the same command-line interface wi...
...they over-write the system python and cause problems with other Red Hat applications that expect a different version of Python? A) The RPMs that start with "python2.4" are built to not interfere with the system Python. They install as "/usr/bin/python2.4" and will not conflict with the system Python unless you are running on a system that ships the a version of Python which has the same major/minor number. To invoke the interpreter with thes...
...ther Platforms</h3> For platforms in which binaries aren't available here, you can easily build binary RPMs directly from the Python SRPM. Simply download one of the .src.rpm files below, and run "rpmbuild --rebuild python-<version>.src.rpm". Note toward the end of the output, the lines starting with "Wrote:" indicate where the binary RPMs were written. <p /> The benefit of building binary RPMs in this way is that they are built using exactly the s...