Short Survey About Requirements Engineering
Dear Sir or Madam, We prepared a short survey to understand practitioners’ perspectives towards the requirements engineering. Our survey basically aims to clarify on many aspects of the requirements engineering applied in industry, including (i) requirements gathering and specifications, (ii) requirements modifications, (iii) requirements analysis, and (iv) requirements transformation. The survey results will be submitted to a reputable journal on software engineering. The survey takes about 2-10 minutes to participate, we would be so grateful if you could separate your time. Also, please circulate the e-mail to anyone who may be interested in. The survey link: https://forms.gle/DhLqr15GXVhJhzzy6 All the best, Etem Çetin Toptani -- *Bu mesajı yazdırmadan önce çevreye verebileceğiniz zararları bir kez daha düşününüz. * *Think of the environment once more before printing out this message.* -- *Bu mesajı yazdırmadan önce çevreye verebileceğiniz zararları bir kez daha düşününüz. * *Think of the environment once more before printing out this message.* -- https://mail.python.org/mailman/listinfo/python-list
Re: Puzzling behaviour of Py_IncRef
> On 27 Jan 2022, at 07:46, Tony Flury wrote: > > > On 26/01/2022 22:41, Barry wrote: >> >> >> Run python and your code under a debugger and check the ref count of the >> object as you step through the code. >> >> Don’t just step through your code but also step through the C python code. >> That will allow you to see how this works at a low level. >> Setting a watch point on the ref count will allow you run the code and just >> break as the ref count changes. >> >> That is what I do when a see odd c api behaviour. >> >> Barry > > > Thanks - I have tried a few times on a few projects to run a debugger in > mixed language mode and never had any success. > > I will have to try again. You mean debugging Python and C/C++? In this case your python code is a simple test script and it's C that you care about. Should not be difficult. I tend to use linux as my lead debug platform as its the easiest to work with. But Windows and macOS also have very good debuggers. Barry > > >>> As posted in the original message - immediately before the call to the C >>> function/method sys.getrefcount reports the count to be 2 (meaning it is >>> actually a 1). >>> >>> Inside the C function the ref count is incremented and the Py_REFCNT macro >>> reports the count as 3 inside the C function as expected (1 for the name in >>> the Python code, 1 for the argument as passed to the C function, and 1 for >>> the increment), so outside the function one would expect the ref count to >>> now be 2 (since the reference caused by calling the function is then >>> reversed). >>> >>> However - Immediately outside the C function and back in the Python code >>> sys.getrefcount reports the count to be 2 again - meaning it is now really >>> 1. So that means that the refcount has been decremented twice in-between >>> the return of the C function and the execution of the immediate next python >>> statement. I understand one of those decrements - the parameter's ref count >>> is incremented on the way in so the same object is decremented on the way >>> out (so that calls don't leak references) but I don't understand where the >>> second decrement is coming from. >>> >>> Again there is nothing in the Python code that would cause that decrement - >>> the decrement behavior is in the Python runtime. >>> > -- > Anthony Flury > email :anthony.fl...@btinternet.com > > -- > https://mail.python.org/mailman/listinfo/python-list > >>> -- >>> Anthony Flury >>> email :anthony.fl...@btinternet.com > > -- > Anthony Flury > email : anthony.fl...@btinternet.com > -- https://mail.python.org/mailman/listinfo/python-list
Re: Starting using Python
On 03/01/2022 12:45, Joao Marques wrote: Good morning: I have a very simple question: I want to start writing programs in Python so I went to the Microsoft Store and installed Python3.9. No problem so far. I would prefer to have a gui interface, an interface that I can use file-->Open and File-->Save as, as I see it on different videos. How can I get it? Because my problem is to run the programs I have already written and saved on a *.py file in my own working directory, not in the Python's CWD directory. Can you please help? I am running Windows 10 Pro version 20H2 Regards, Joao The simplest Python GUI editor is IDLE, which should come installed with with Python. On windows just open the start menu and type 'IDLE' You can save your python files anywhere - you shouldn't need to save it in Python's working directory. Python doesn't impose any particular file system until you start implement features such as packages which are not something a beginner should ever worry about. -- Anthony Flury email : anthony.fl...@btinternet.com -- https://mail.python.org/mailman/listinfo/python-list
