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Check to see if python script is running
I have a python daemon running as a part of my web app/ How can I quickly check (using python) if my daemon is running and, if not, launch it?
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How do I get list of methods in a Python class?
...gt;>> from optparse import OptionParser
>>> import inspect
#python2
>>> inspect.getmembers(OptionParser, predicate=inspect.ismethod)
[([('__init__', <unbound method OptionParser.__init__>),
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('add_option', <unbound method OptionParser.add_option>),
('add_opti...
Invalid syntax when using “print”? [duplicate]
I'm learning Python and can't even write the first example:
4 Answers
4
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How do I pick 2 random items from a Python set? [duplicate]
I currently have a Python set of n size where n >= 0. Is there a quick 1 or 2 lines Python solution to do it? For example, the set will look like:
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How should I organize Python source code? [closed]
I'm getting started with Python (it's high time I give it a shot), and I'm looking for some best practices.
2 Answers
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Pairwise crossproduct in Python [duplicate]
...the list of cross product pairs from a list of arbitrarily long lists in Python?
3 Answers
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python ? (conditional/ternary) operator for assignments [duplicate]
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Python has such an operator:
variable = something if condition else something_else
Alternatively, although not recommended (see @karadoc's comment):
variable = (condition and something) or something_else
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Python constructor and default value [duplicate]
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This is considered the Pythonic way, but I prefer krousey's way because "special cases aren't special enough".
– Karl Knechtel
Jan 30 '11 at 9:44
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Complex numbers usage in python [closed]
I'm a math newbie. Now I'm getting deeper into Python data types. I can't understand how to use a complex number. Please give me examples of usage of complex numbers in Python.
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Why doesn't calling a Python string method do anything unless you assign its output?
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This is because strings are immutable in Python.
Which means that X.replace("hello","goodbye") returns a copy of X with replacements made. Because of that you need replace this line:
X.replace("hello", "goodbye")
with this line:
X = X.replace("hello", "goodbye"...