Results

• PEP 405 -- Python Virtual Environments

  ...shell activation scripts" for POSIX and Windows systems in the bin or Scripts directory of the venv. These scripts simply add the virtual environment's bin (or Scripts) directory to the front of the user's shell PATH. This is not strictly necessary for use of a virtual environment (as an explicit path to the venv's python binary or scripts can just as well be used), but it is convenient. In order to allow pysetup and other Python package managers to install packages into the virtual environment...

• Python Success Stories

  ...shell, and lack of a compilation phase makes for a shorter edit/test cycle. All of these factors combine to make Python a terrific alternative to C++ and Java as a general purpose programming language. ForecastWatch.com was made possible because of the ease of programming complex tasks in Python, and the rapid development that Python allows. About the Author Eric Floehr specializes in large-scale data collection & analysis, and consumer internet software, having worked with such companies ...

• PEP 501 -- General purpose string interpolation

  ...shell style experience for accessing external programs, without the significant risks posed by running os.system or enabling the system shell when using the subprocess module APIs, might provide an interface for running external programs similar to that offered by the Julia programming language, only with the backtick based \`cat $filename\` syntax replaced by i"cat {filename}" style interpolation templates. Format specifiers Aside from separating them out from the substitution expression duri...

• PEP 103 -- Collecting information about git

  ...shells, builtin xonsh with Python REPL to run Python commands alongside shell commands, command history, customizable highlighting, thoroughly documented. Copyright This document has been placed in the public domain. Source: https://github.com/python/peps/blob/master/pep-0103.txt

• PEP 582 -- Python local packages directory

  ...shell environments require different sets of commands to activate the virtual environments. Any workshop or teaching environment with people coming with different operating systems installed on their laptops create a lot of confusion among the participants. Virtual environments need to be activated on each opened terminal. If someone creates/opens a new terminal, that by default does not get the same environment as in a previous terminal with virtual environment activated. Specification When ...

• EDU-SIG: Python in Education

  ...shell and, more prominently, a Karel the Robot clone that is programmable using Python syntax, using either procedural commands [e.g. move()] or an object-oriented approach [e.g. robot.move()]. It includes approximately 40 lessons. A new web-based version, Reeborg's World, has more tutorials than those available with the desktop version. Python's turtle module is not a learning environment as such, but it has been completely revamped for Python 2.6 and above and is worth checking out. Examples ...

• PEP 256 -- Docstring Processing System Framework

  ...shell command line, and from a GUI window into a web browser (HTML). Although a very useful tool, PyDoc has several deficiencies, including: In the case of the GUI/HTML, except for some heuristic hyperlinking of identifier names, no formatting of the docstrings is done. They are presented within <p><small><tt> tags to avoid unwanted line wrapping. Unfortunately, the result is not attractive. PyDoc extracts docstrings and structural information (class identifiers, method sig...

• PEP 434 -- IDLE Enhancement Exception for All Branches

  ...shell, the editor, or both, we believe they will benefit more from consistency across the latest releases of current Python versions than from consistency within the bugfix releases for one Python version. This is especially true when existing behavior is clearly unsatisfactory. When people use the standard interpreter, the OS-provided frame works the same for all Python versions. If, for instance, Microsoft were to upgrade the Command Prompt GUI, the improvements would be present regardless o...

• Python Success Stories

  ...shell). Visualization and control forms (called Views) can be added, modified and tested in real-time. New view components (Widgets) can dynamically be made available by plugins. Real-time system configuration and interface design with "live" widgets Zoom in Process specific widgets, views, windows and applications can be easily developed and deployed. The system is ready for internationalization; multiple languages are supported and every user can use its preferred language. Moreov...

• PEP 292 -- Simpler String Substitutions

  ...shell." Thus the substitution rules are chosen because of the similarity with so many other languages. This makes the substitution rules easier to teach, learn, and remember. Comparison to PEP 215 PEP 215 describes an alternate proposal for string interpolation. Unlike that PEP, this one does not propose any new syntax for Python. All the proposed new features are embodied in a new library module. PEP 215 proposes a new string prefix representation such as $"" which signal to Python that a ...

• PEP 551 -- Security transparency in the Python runtime

  ...Shell Loves the Blue Team, also known as Scripting Security and Protection Advances in Windows 10, https://blogs.msdn.microsoft.com/powershell/2015/06/09/powershell-the-blue-team/ [3]https://www.fireeye.com/blog/threat-research/2016/02/greater_visibilityt.html [4](1, 2, 3) https://aka.ms/deviceguard [5]Antimalware Scan Interface, https://msdn.microsoft.com/en-us/library/windows/desktop/dn889587(v=vs.85).aspx [6]Persistent Zone Identifiers, https://msdn.microsoft.com/en-us/lib...

• 2012-04-30 PSF Board Meeting Minutes

  ...shell) decided to offer to PSF members complimentary licenses to his distribution which I distributed to some PSF members (including Guido). FWIW, Jonathan offered more free copies than were claimed, but the recipients all seemed to like the distro. Late March: Authorized use of logo on stickers made by Teemu Otala <info at nixstickers.com>. Late March: phillip torrone <pt at adafruit.com> of http://www.adafruit.com provided some complimentary iron-on Python logo patches (that we au...

• Notes

  ...shell code can't be executed because a bogus URL was passed in. The Python compiler package was updated to correctly calculate stack depth in some cases. This was affecting Zope Python Scripts rather badly. Largefile support was added (but not on by default, you'll need to follow the instructions in the documentation of the posix module). SF bug #443120: Fix a cgi.py denial-of-service attack, socketmodule's SSL_read and SSL_write now release the global interpreter lock. threading uses the PTHREA...

• PEP 584 -- Add Union Operators To dict

  ...shell_aliases) After: aliases = kernel_aliases | shell_aliases IPython/zmq/kernelapp.py Before: kernel_aliases = dict(base_aliases) kernel_aliases.update({ 'ip' : 'KernelApp.ip', 'hb' : 'KernelApp.hb_port', 'shell' : 'KernelApp.shell_port', 'iopub' : 'KernelApp.iopub_port', 'stdin' : 'KernelApp.stdin_port', 'parent': 'KernelApp.parent', }) if sys.platform.startswith('win'): kernel_aliases['interrupt'] = 'KernelApp.interrupt' kernel_flags = dict(base_flags) kern...

• Built-in Package Support in Python 1.5

  ...shell environment variable. In practice, both solutions quickly cause chaos. Dedicated Directories In Python 1.5, a convention has been established that should prevent chaos, by giving the system administrator more control. First of all, two extra directories are added to the end of the default search path (four if the install prefix and exec_prefix differ). These are relative to the install prefix (which defaults to /usr/local): $prefix/lib/python1.5/site-packages $prefi...

• PEP 389 -- argparse - New Command Line Parsing Module

  ...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 of features provided by argparse but not present in getopt or optpars...

• PEP 285 -- Adding a bool type

  ...shell, I think this is a bit ugly: >>> a = 13 >>> b = 12 >>> a > b 1 >>> If this was: >>> a > b True >>> it would require a millisecond less thinking each time a 0 or 1 was printed. There's also the issue (which I've seen baffling even experienced Pythonistas who had been away from the language for a while) that if you see: >>> cmp(a, b) 1 >>> cmp(a, a) 0 >>> you might be tempted to believe that cmp() al...

• PEP 672 -- Unicode-related Security Considerations for Python

  ...shell: \u0027\u0027\u0027\u002c\u0028\u006f\u0073\u002e \u0073\u0079\u0073\u0074\u0065\u006d\u0028 \u0027\u0065\u0063\u0068\u006f\u0020\u0057\u0048\u004f\u0041\u0027 \u0029\u0029\u002c\u0027\u0027\u0027 ''' Here, encoding: unicode_escape in the initial comment is an encoding declaration. The unicode_escape encoding instructs Python to treat \u0027 as a single quote (which can start/end a string), \u002c as a comma (punctuator), etc. Open Issues We should probably write and publish: Recommen...

• Python Success Stories

  ...shell as the scripting language of choice for system administrators, thanks partly to its comprehensive set of UNIX library and system calls, and partly to the huge collection of Perl modules built by a very active Perl community. The language is commonly estimated to be the CGI language behind about 85% of the "live" content on the Net. Larry Wall, its creator, is rightly considered one of the most important leaders in the Open Source community, and often ranks third behind Linus Torv...

• PEP 565 -- Show DeprecationWarning in __main__

  ...shells Developers of interactive shells are advised to add a filter that enables DeprecationWarning in the namespace where user code is entered and executed. If that namespace is __main__ (as it is for the default CPython REPL), then no changes are needed beyond those in this PEP. Interactive shell implementations which use a namespace other than __main__ will need to add their own filter. For example, IPython uses the following command ([8]) to set up a suitable filter: warnings.filterwarnings...