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How to call a Parent Class's method from Child Class in Python?
When creating a simple object hierarchy in Python, I'd like to be able to invoke methods of the parent class from a derived class. In Perl and Java, there is a keyword for this ( super ). In Perl, I might do this:
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Change Tomcat Server's timeout in Eclipse
...Tomcat reads this setting from the element in the element in the servers.xml file. This file is stored in the .metatdata/.plugins/org.eclipse.wst.server.core
directory of your eclipse workspace, ie:
//.metadata/.plugins/org.eclipse.wst.server.core/servers.xml
There are other juicy configuratio...
How to index into a dictionary?
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Dictionaries are unordered in Python versions up to and including Python 3.6. If you do not care about the order of the entries and want to access the keys or values by index anyway, you can use d.keys()[i] and d.values()[i] or d.items()[i]. (Note that ...
Are tuples more efficient than lists in Python?
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This answer shows us that Python acknowledges tuple constants. That's good to know! But what happens when trying to build a tuple or a list from variable values?
– Tom
Aug 13 '15 at 14:40
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Python Process Pool non-daemonic?
Would it be possible to create a python Pool that is non-daemonic? I want a pool to be able to call a function that has another pool inside.
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Python: Check if one dictionary is a subset of another larger dictionary
...instead of items() leads to about a 1.2x improvement. This was done using Python 2.7.
– Chad
Mar 29 '16 at 21:47
35
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Why can a function modify some arguments as perceived by the caller, but not others?
I'm trying to understand Python's approach to variable scope. In this example, why is f() able to alter the value of x , as perceived within main() , but not the value of n ?
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Is there a “do … until” in Python? [duplicate]
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There is no do-while loop in Python.
This is a similar construct, taken from the link above.
while True:
do_something()
if condition():
break
share
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Retrieving parameters from a URL
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Python 2:
import urlparse
url = 'http://foo.appspot.com/abc?def=ghi'
parsed = urlparse.urlparse(url)
print urlparse.parse_qs(parsed.query)['def']
Python 3:
import urllib.parse as urlparse
from urllib.parse import parse_qs...
How to convert an integer to a string in any base?
Python allows easy creation of an integer from a string of a given base via
27 Answers
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