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How to erase the file contents of text file in Python?
...if you have already an opened file:
f = open('file.txt', 'r+')
f.truncate(0) # need '0' when using r+
In C++, you could use something similar.
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How is __eq__ handled in Python and in what order?
...lue = 4
a == b
it will print:
A __eq__ called: <__main__.A object at 0x013BA070> == <__main__.B object at 0x013BA090> ?
B __eq__ called: <__main__.B object at 0x013BA090> == 3 ?
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]
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danbendanben
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Batch file to delete files older than N days
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1085
Enjoy:
forfiles -p "C:\what\ever" -s -m *.* -d <number of days> -c "cmd /c del @path"
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ReSharper “Cannot resolve symbol” even when project builds
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edited Jan 17 '17 at 10:06
Peter Mortensen
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How to use filter, map, and reduce in Python 3
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You can read about the changes in What's New In Python 3.0. You should read it thoroughly when you move from 2.x to 3.x since a lot has been changed.
The whole answer here are quotes from the documentation.
Views And Iterators Instead Of Lists
Some well-known APIs no longer return...
Python: try statement in a single line
...iables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in first, you do have options.
The best option is an if statement.
c = None
b = [1, 2]
if c is None:
a = b
else:
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Do while loop in SQL Server 2008
Is there any method for implement do while loop in SQL server 2008?
5 Answers
5
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Short description of the scoping rules?
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martineau
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answered Nov 15 '08 at 12:47
Rizwan Kass...
Do checkbox inputs only post data if they're checked?
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Yes, standard behaviour is the value is only sent if the checkbox is checked. This typically mea...
