大约有 9,000 项符合查询结果（耗时：0.0240秒） [XML]
Python Infinity - Any caveats?
So Python has positive and negative infinity:
5 Answers
5
...
String formatting: % vs. .format vs. string literal
Python 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations?
...
How to modify a text file?
I'm using Python, and would like to insert a string into a text file without deleting or copying the file. How can I do that?
...
JSON datetime between Python and JavaScript
I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
...
How to merge lists into a list of tuples?
What is the Pythonic approach to achieve the following?
8 Answers
8
...
String formatting named parameters?
...
In Python 2.6+ and Python 3, you might choose to use the newer string formatting method.
print('<a href="{0}">{0}</a>'.format(my_url))
which saves you from repeating the argument, or
print('<a href="{url}">...
How to drop into REPL (Read, Eval, Print, Loop) from Python code
Is there a way to programmatically force a Python script to drop into a REPL at an arbitrary point in its execution, even if the script was launched from the command line?
...
Is there a way to detach matplotlib plots so that the computation can continue?
After these instructions in the Python interpreter one gets a window with a plot:
19 Answers
...
Does “\d” in regex mean a digit?
...d matches a digit satisfying what kind of requirement? I am talking about Python style regex.
6 Answers
...
The difference between sys.stdout.write and print?
... >> open('file.txt', 'w'), 'Hello', 'World', 2+3
See: https://docs.python.org/2/reference/simple_stmts.html?highlight=print#the-print-statement
In Python 3.x, print becomes a function, but it is still possible to pass something other than sys.stdout thanks to the fileargument.
print('Hel...