Results

• A Journey to Python

  ...in Python (and in C, coding extensions for Python). I also managed to offer some contributions to Python itself, and develop the gmpy project to offer advanced multiprecision arithmetic, number-theoretical functions, etc., on top of the LGPL-licensed GMP library (some of those advanced functionalities are precious to my ongoing work in bridge simulation and analysis, though by now my ongoing work maintaining and developing gmpy is mostly something I see as a contribution to the community). I di...

• Standard Exception Classes in Python 1.5

  ...ith string-based exceptions, this would print something like Sorry: ZeroDivisionError : integer division or modulo With class-based exceptions, it will print Sorry: exceptions.ZeroDivisionError : integer division or modulo The funny exceptions.ZeroDivisionError occurs because when an exception type is a class it is printed as modulename.classname. This is handled internally by Python. Fatal Breakage More serious is breaking error handling code. This usually ...

• Parade of the PEPs

  ...in detail, so I don't know if it always does the right thing. I hope that it will make it into 2.3. PEP 274 - Dict Comprehensions - Warsaw If we were to adopt dict comprehensions, this PEP says everything that needs to be said. But I don't even want to think about this for Python 2.3; I think it's way too minor a feature. This would be a lot easier to adopt if there was a working implementation in patch form. Sometimes it would be nice if things like this could be defined usi...

• Foreword for "Programming Python" (1st ed.)

  ...ill gladly admit that Python is not the fastest running scripting language. It is a good runner-up though. With ever-increasing hardware speed, the accumulated running time of a program during its lifetime is often negligible compared to the programmer time needed to write and debug it. This, of course, is where the real savings can be made. While this is hard to assess objectively, Python is considered a winner in coding time by most who have tried it. In addition, many consider usi...

• Community Stories

  ...improving its general speed, making it more compatible with other implementations and improving the multi-core experience. Although this will be a challenging path and will require drastic changes in Python itself and its C-API, I am very excited about the things to come and what awaits for the Python Language and its community :) Pablo Galindo Salgado, Python Core Developer Community trainings A huge turning point in my career was a Python workshop. I programmed a bit as a kid, and took a si...

• Python Success Stories

  ...ing, and makes MayaVi self-extending as additional VTK objects are defined. Since Python is a scripting language, it was the natural choice for an extension language for MayaVi. As a result, MayaVi isn't just written in Python but can also be scripted by end users working in Python, in order to extend it with additional useful functionality. I'm not a software developer or a computer scientist. Neither am I a graphics expert. While I did have a good bit of programming experience with C/C++, I ...

• [PYTHON MATRIX-SIG] FAQ

  ...introduce any majorincompatibilities in subsequent release of the system. This meansthat people have no excuse not to develop modules to interface to allthat great C/FORTRAN numerical code out there. Obviously the ultimate goal is to have this a part of the base pythondistribution. I'll start thinking more about this once I make thegeneral release to the community at large. 6) Hints for Windows Users You must use binary mode files for pickling and unpickling matrices inthe windows world...

• Python Success Stories

  ...ile undertaking. I had been impressed by Python's low coefficient of friction so far, but here was a real test. How hard would I have to wrestle with the language to get it to do this? I knew from previous experience that the bout was likely to be painful, even assuming I won, but I dived into the book and read up on Python's metaclass facilities. The resulting function is shown in Listing 3, and the code that calls it is in Listing 4. def copy_instance(toclass, fromdict): # Initialize a class ...

• Python Success Stories

  ...is style of navigation. Even in a program that didn't use that navigation style, he had begun using it as if it did. So I thought, why not make an image viewer that worked his way? Why not write a program that lets me build picture environments from our life, and lets Nat navigate through them in the style he wanted? One of over 1500 images in Natsworld. The user interface is simply a set of directional cursors (near center) Zoom in Choosing Python I had used Python for small scripting p...

• Python Software Foundation: Minutes of Board of Directors Meeting (March 8, 2001)

  ...ications The Foundation needs mailing lists for communicating with members and the public. It also needs a Web site. Action Item: Greg Stein will create mailing lists. Action Item: Greg Stein will set up Web pages. 5. Sponsor discussion The Board directed Hardt to continue seeking out sponsor members. There was a discussion of what freedom he should have to perform branding activities. The Board allowed him to develop the brand, but warned against over-promotion or dilution....

• Python Documentation Index

  ...ing Python's most fundamental and versatile data types, lists and dictionaries. An Optimization Anecdote Required reading if you find that your Python code runs too slow. Metaclass Programming in Python 1.5 Warning: reading this document may cause your brain to explode. Built-in Package Support in Python 1.5 The most official documentation for the new package features in Python 1.5. Standard Exception Classes in Python 1.5 The most official documentation for the new exception features in Pyt...

• Python Software Foundation FAQ

  ...I join the PSF? See the membership FAQ for detailed information on both basic membership and the other kinds of membership available to individuals. Sponsorship is also available for organizations. See the sponsorship page for details. How can I follow PSF activities? Sign up to receive our newsletter! It is currently sent out about every other month. Python Software Foundation News is a blog announcing and discussing PSF activities. You can follow us on Twitter , Mastodon, and LinkedIn as w...

• Foreword for "Programming Python" (2nd ed.)

  ...in a backwards compatible way. The current plan, however, is that the necessary changes will be introduced gradually into the current Python 2.x line of development, with a clear transition path that includes a period of backwards compatibility support. Take for example integer division. In line with C, Python currently defines x/y with two integer arguments to have an integer result. In other words, 1/2 yields 0! While most died-in-the-wool programmers expect this, it's a continuin...

• Release – Python 3.9.0a2

  Version: None

  Released: Dec. 18, 2019

  This is an early developer preview of Python 3.9 Major new features of the 3.9 series, compared to 3.8 Python 3.9 is still in development. This releasee, 3.9.0a2 is the second of six planned alpha releases. Alpha releases are intended to make it easier to test the current state of …

  View Release Notes

• Job - CNO Python Software Engineer

  Location: Hanover US

  Requirements: I need someone who can demonstrate solid knowledge of Python and XML. The candidate should perform system and subsystem definition, preliminary and detailed design, design implementation, and subsystem and system integration and tests for a system. The role involves researching requirements for products, including CNO deployment environments, performance criteria, …

• Python Patterns - An Optimization Anecdote

  ...ing concatenation functions in the string module that are implemented in C. In particular, string.joinfields(list_of_strings, delimiter) concatenates a list of strings, placing a delimiter of choice between each two strings. Nothing stops us from concatenating a list of characters (which are just strings of length one in Python), using the empty string as delimiter. Lo and behold: import string def f6(list): return string.joinfields(map(chr, list), "") Th...

• Sunsetting Python 2

  ...is help page. I didn't hear anything about this till just now. Where did you announce it? We talked about it at software conferences, on the Python announcement mailing list, on official Python blogs, in textbooks and technical articles, on social media, and to companies that sell Python support. How can I make sure announcements like this don't surprise me again? Buy Python support from a vendor, or subscribe to the Python announcement mailing list. I have more questions. Read this detailed lis...

• D-Link Australia Uses Python to Control Firmware Updates

  ...ink Australia Uses Python to Control Firmware Updates Introduction D-Link Australia's RMA department provides warranty services to Australiasia. Warranty services consist of diagnosing, fixing, testing, refurbishing, and packaging security cameras, modems, voip hardware, switches and router products. Problem Description Prior to the development of the software described below, the standard method of upgrading firmware during warranty service was to load settings and firmware onto a modem th...

• Python Humor

  ...icroSoft Inc. is considering bringing an intellectual property infringement action against the inventer of the Python programming language claiming that the language documentation infringes on MicroSoft's rights to the Monty Python Flying Circus. Steve Ballmer, Microsoft Executive Vice President, is reported to have said "This is very serious -- we paid almost a quarter billion for those rights; this is almost up there with the Mona Lisa thing." Microsoft reportedly is willing to stop...

• Built-in Package Support in Python 1.5

  ...is feature has been dropped because of its limited use and poor readability. Incompatible Semantics For __init__ Using ni, the __init__.py file inside a package (if present) would be imported as a standard submodule of the package. The built-in package support instead loads the __init__.py file in the package's namespace. This means that if __init__.py in package A defines a name x, if can be referred to as A.x without further effort. Using ni, the __init__.py would have to contai...

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