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...Characteristic features of biomolecular simulations that had to be taken into account are the long execution times of some simulation techniques (several weeks are not uncommon) and the complexity of the data structures describing biomolecules. Choice of languages The choice of Python plus C was made after an evaluation of various languages. I was rapidly convinced that only a mixture of a high-level interpreted language and a CPU-efficient compiled language could meet my seemingly conflicting...
Location: Remote, USA residents only United States
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The Python Software Foundation (PSF) (https://www.python.org/psf-landing/) is hiring a part-time Accountant, reporting to the PSF Controller and supporting the Accounting Team. The PSF’s Accounting Team is the back-office backbone of our organization and supports our non-profit mission; from the annual PyCon US conference to giving out Python grants …
...Comfortable interacting with diverse contributors in many different countries, with widely varying backgrounds Preferred experience: 3 to 4 years of experience with managing professional events of comparable scale/structure Experience with vendor management and conference organizing strongly preferred Experience managing volunteers Experience with project management tools, like Asana and Trello Familiarity with the global open source community Excellent customer service and communica...
...ce was in C and C++, I felt that another language might be a better choice for quickly developing a graphical user interface. VTK is written in C++, but it has also been wrapped for Python, Tcl and Java. I took a look at each of those. I ruled out Tcl because I felt Python's syntax was much cleaner and because I had heard that large Tcl programs could be hard to maintain. Java had the disadvantage of requiring compilation with each change in the code, and the ability to run code in any recent ...
...ctions to removing it within literal strings; several people clarified that they want to keep this literal-string usage, but don't mind losing the general case. Pro: The use of \ for an escape character within strings is well known. Contra: But note that this particular usage is odd, because the escaped character (the newline) is invisible, and the special treatment is to delete the character. That said, the \ of \(newline) is still an escape which changes the meaning of the following character...
...ct 3: Q accept (if C: x elif C2: y else: z) 3: Q accept C -> x : y 1: Q accept x (if C), y 1: Q accept if c: x else: y 3: Q accept (c).{True:1, False:2} 2: Q accept if c: x else: y 3: Q accept (c).{True:1, False:2} 3: Q accept if C: x else y 1: Q accept (x if C else y) 1: Q accept ifelse(C, x, y) 2: Q reject x or y <- C 1: Q accept (C ? x : y) required parens 1: Q accept iif(C, x, y) 1: Q accept ?(C, x, y) 1: Q accept switch-case 2: Q accept multi-line if/else 1: Q acce...
...chose to use python because we wanted a well-supported scripting language that could extend our core code. Indeed, we wrote much more code in python than we were expecting, including all in-game screens and the main interface. It was a huge win for the project because writing code in a language with garbage collection simply goes faster than writing code in C++. The fact that users will be able to easily mod the interface is a nice plus as well. The downside of python was that it significantly i...
...ctions. Collect SSH keys for all current committers, along with usernames to appear in commit messages. At the beginning of the migration, announce that the repository on SourceForge closed. 24 hours after the last commit, download the CVS repository. Convert the CVS repository into a Subversion repository. Publish the repository with write access for committers, and read-only anonymous access. Disable CVS access on SF. Collect SSH keys After some discussion, svn+ssh was selected as the best ...
...ce code and build instructions are available here. Currently build support is enabled using VS2019 and GCC5 tool chains for x86 and x64 bit platforms. Python for VMS A VMS port is available. Python for HP-UX You can purchase ActivePython (commercial and community versions, including scientific computing modules, not open source) Alternate Python packages for Linux You can purchase ActivePython (commercial and community versions, including scientific computing modules, not open source)
...ccessful ones, because of the way the hash chaining works. The second reason why f3() is faster than f1() is that the call to chr(item), as executed by the bytecode interpreter, is probably a bit slower than when executed by the map() function - the bytecode interpreter must execute three bytecode instructions for each call (load 'chr', load 'item', call), while the map() function does it all in C. This led us to consider a compromise, which wouldn't waste extra space, but whic...
...ching Nat flip through pictures, though, I noticed something: once he became familiar with the sequence of the pictures, he was clicking on the pictures as if it mattered where he clicked. The image viewer didn't care: any click on the picture would show the next picture. But if Nat knew that the next picture was of a thing off to the left of the current picture, he would click on the left of the image. If he knew the next picture was through a door at the right of the picture, he would click...
...ces [1]Add tp_fastcall to PyTypeObject: support FASTCALL calling convention for all callable objects, https://bugs.python.org/issue29259 [2]tp_call/PyObject_Call calling convention https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_call [3]Using PY_VECTORCALL_ARGUMENTS_OFFSET in callee https://github.com/markshannon/cpython/blob/815cc1a30d85cdf2e3d77d21224db7055a1f07cb/Objects/classobject.c#L53 [4]Argument Clinic https://docs.python.org/3/howto/clinic.html Refer...
...Created:23-Dec-2016 Python-Version:3.7 Contents Abstract Release Manager and Crew 3.7 Lifespan Release Schedule 3.7.0 schedule 3.7.1 schedule (first bugfix release) 3.7.2 schedule 3.7.3 schedule 3.7.4 schedule 3.7.5 schedule 3.7.6 schedule 3.7.7 schedule 3.7.8 schedule (last bugfix release) 3.7.9 schedule (security/binary release) 3.7.10 schedule 3.7.11 schedule 3.7.12 schedule 3.7.13 schedule 3.7.14 and beyond schedule Features for 3.7 Copyright Abstract This document describes the ...
...cess long int objects. New function pointer typedefs ssizeargfunc, ssizessizeargfunc, ssizeobjargproc, ssizessizeobjargproc, and lenfunc are introduced. The buffer interface function types are now called readbufferproc, writebufferproc, segcountproc, and charbufferproc. A new conversion code 'n' is introduced for PyArg_ParseTuple Py_BuildValue, PyObject_CallFunction and PyObject_CallMethod. This code operates on Py_ssize_t. The conversion codes 's#' and 't#' will output Py_ssize_t if the macro P...
...chives Author:jim at interet.com (James C. Ahlstrom) Status:Final Type:Standards Track Created:11-Oct-2001 Python-Version:2.3 Post-History:26-Oct-2001 Contents Abstract Note Specification Subdirectory Equivalence Efficiency zlib Booting Directory Imports Benchmarks Custom Imports Implementation References Copyright Abstract This PEP adds the ability to import Python modules *.py, *.py[co] and packages from zip archives. The same code is used to speed up normal directory imports p...
...cit String Concatenation Author:Jim J. Jewett <JimJJewett at gmail.com>, Raymond Hettinger <python at rcn.com> Status:Rejected Type:Standards Track Created:29-Apr-2007 Post-History:29-Apr-2007, 30-Apr-2007, 07-May-2007 Contents Rejection Notice Abstract Motivation History or Future Problem Solution Concerns Operator Precedence Long Commands Regular Expressions Internationalization Transition Open Issues References Copyright Rejection Notice This PEP is rejected. Th...
...code should use %b. Examples: >>> b'%b' % b'abc' b'abc' >>> b'%b' % 'some string'.encode('utf8') b'some string' >>> b'%b' % 3.14 Traceback (most recent call last): ... TypeError: b'%b' does not accept 'float' >>> b'%b' % 'hello world!' Traceback (most recent call last): ... TypeError: b'%b' does not accept 'str' %a will give the equivalent of repr(some_obj).encode('ascii', 'backslashreplace') on the interpolated value. Use cases include developing a new ...
...ce the patch/bug number in the CVS log message. Also be sure to change the status in the patch manager or bug database (if you have access to the bug database). It is not acceptable for any checked in code to cause the regression test to fail. If a checkin causes a failure, it must be fixed within 24 hours or it will be backed out. All contributed C code must be ANSI C. If possible check it with two different compilers, e.g. gcc and MSVC. All contributed Python code must follow Guido's Python...
...class C. For instance, in the case of single inheritance hierarchy, if C is a subclass of C1, and C1 is a subclass of C2, then the linearization of C is simply the list [C, C1 , C2]. However, with multiple inheritance hierarchies, the construction of the linearization is more cumbersome, since it is more difficult to construct a linearization that respects local precedence ordering and monotonicity. I will discuss the local precedence ordering later, but I can give the definition of monotonicit...
...chanism for backward compatibility Author:Ed Schofield <ed at pythoncharmers.com> BDFL-Delegate:Brett Cannon (on behalf of the steering council) Status:Rejected Type:Process Created:04-Aug-2015 Contents Rejection Notice Scope Context The current situation Problem Backward compatibility as enabler for "downhill upgrades" Proposal - part 1 Example Proposal - part 2 Counter-examples Benefits Questions and answers Copyright Rejection Notice The steering council decided that t...