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How to avoid “RuntimeError: dictionary changed size during iteration” error?
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In Python 2.x calling keys makes a copy of the key that you can iterate over while modifying the dict:
for i in d.keys():
Note that this doesn't work in Python 3.x because keys returns an iterator instead of a list.
Another ...
Strengths of Shell Scripting compared to Python [closed]
...(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
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How can I profile Python code line-by-line?
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Does line_profiler work with Python 3? I couldn't get any information on that.
– user1251007
Jul 23 '12 at 15:02
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String to Dictionary in Python
...s JSON! You can deserialize it using the built-in json module if you're on Python 2.6+, otherwise you can use the excellent third-party simplejson module.
import json # or `import simplejson as json` if on Python < 2.6
json_string = u'{ "id":"123456789", ... }'
obj = json.loads(json_string) ...
Python function overloading
I know that Python does not support method overloading, but I've run into a problem that I can't seem to solve in a nice Pythonic way.
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How to read a (static) file from inside a Python package?
Could you tell me how can I read a file that is inside my Python package?
8 Answers
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Writing string to a file on a new line every time
...ing every time I call file.write() . What's the easiest way to do this in Python?
10 Answers
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`from … import` vs `import .` [duplicate]
... I just tried import urllib.request and it doesn't work at all (python 2.6.5 Ubuntu).
– tkone
Feb 24 '12 at 23:33
6
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__lt__ instead of __cmp__
Python 2.x has two ways to overload comparison operators, __cmp__ or the "rich comparison operators" such as __lt__ . The rich comparison overloads are said to be preferred, but why is this so?
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How to format a floating number to fixed width in Python
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The format specifier inside the curly braces follows the Python format string syntax. Specifically, in this case, it consists of the following parts:
The empty string before the colon means "take the next provided argument to format()" – in this case the x as the only argument....