python tag

Python is a high-level, interpreted, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation.

Python is dynamically-typed and garbage-collected. It supports multiple programming paradigms, including structured (particularly procedural), object-oriented and functional programming. It is often described as a "batteries included" language due to its comprehensive standard library.

Guido van Rossum began working on Python in the late 1980s as a successor to the ABC programming language and first released it in 1991 as Python 0.9.0. Python 2.0 was released in 2000 and introduced new features such as list comprehensions, cycle-detecting garbage collection, reference counting, and Unicode support. Python 3.0, released in 2008, was a major revision that is not completely backward-compatible with earlier versions. Python 2 was discontinued with version 2.7.18 in 2020.

Python consistently ranks as one of the most popular programming languages. It is used by many organizations and companies. Pixar, Disney, Instagram and the developers of the Linux Kernel are among many of it's high-profile users, which includes many developers of Free and Open source software.

Reference: WIKIPEDIA

4650 questions


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Is there a method to find out how many CPUs there are?

Is there a way to find out how many CPUs are in your computer?I hope it's a method that runs as t(1) because I have to check it quickly and move on.


1 answers
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How do I write the option to check the Python code only for syntax?

In Perl, it was possible to use -c to check only the syntax.Python also wants to check the syntax, not execute, but I wonder how to do it here.

2 years ago

1 answers
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plot an exponential function with f = 10^n in matplotlib as y = x graph

The function f(x) = 10x is an exponential function, so if you just draw it, it looks like a curve, but you want to draw it in a straight line as if you logged it.xI've tried, but this is the limit I c...


1 answers
82 views
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Is it better to use a comma as? after try-exception?

Usually from exceptiontry: passexcept Exception, exception: passtry: passexcept Exception as exception: passThey use it in these two ways. Which one is the standard?The second source code is okay to r...

2 years ago

1 answers
83 views
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How do I resize picture files with PIL?

You want to resize the thumbnail while maintaining the original proportion in the plot.How can I change the size of the thumbnail in PIL?


1 answers
107 views
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I want to increase the value after checking whether there is a key in the dict, so please give me some advice

Dict already exists, and when I have a key, check whether dict[key] is None or not, and I thought it would work like the code below, but it didn't work, so I'm asking you a question. if (my_dict[key] ...

2 years ago

1 answers
84 views
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Question! I'm going to write a list element in the file

You are about to write a list element to a file. For example, #PythonFilemylist = [hello, 3]file = open(myfile.txt, w)file.writelines([%s\n % item for item in mylist])When you run myfile.txthello3Let'...


1 answers
45 views
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You want to erase all the HTML tags "<>" and leave only the contents.

from html.parser import HTMLParserbr = urllib.request.urlopen('http://www.google.com')html = str(br.read())print(html)You don't just print out HTML from the same source. <a class=gb1 href=http://ww...

2 years ago

1 answers
77 views
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[datetime.date (2016, 1, 20)] and print it out as "2016-1-20"

import datetimemylist = []today = datetime.date.today()mylist.append(today)print mylistResult: [datetime.date (2016, 1, 20)]The result I want is 2016-1-20.When you print out the date format right away...

2 years ago

1 answers
81 views
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Is there a better code to comma all the strings on the list? (['a','b'] -> "a,b")

I'm going to attach the entire list element as a string to distinguish each element

2 years ago
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