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error: command 'gcc' failed with exit status 1 while installing eventlet
... need both python-dev and libevent-dev. Thanks!
– Alex Whittemore
May 17 '13 at 2:00
57
For fedor...
Why does isNaN(“ ”) (string with spaces) equal false?
In JavaScript, why does isNaN(" ") evaluate to false , but isNaN(" x") evaluate to true ?
23 Answers
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PHP - iterate on string characters
... is much more efficient than the answer provided.
– 0x476f72616e
Oct 15 '18 at 3:10
6
Just note t...
How to set enum to null
...l by having the FIRST value in the enum (aka 0) be the default value. For example in a case of color None.
public Color myColor = Color.None;
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How to pretty print nested dictionaries?
...
I'm not sure how exactly you want the formatting to look like, but you could start with a function like this:
def pretty(d, indent=0):
for key, value in d.items():
print('\t' * indent + str(key))
if isinstance(value, dict):
...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
... 14.0.835.163
Safari 4.0.5
Opera 10.6
Tested and Not working:
FireFox 40.0.2 (observing Developer Network Tools, you can see that the URL loads, but the image is not displayed)
Internet Explorer 11.0.9600.17905 (URL never loads)
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When to use enumerateObjectsUsingBlock vs. for
...use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingBlock: will be as fast or faster than ...
How do I install the yaml package for Python?
...pip install pyyaml
If you want to install python yaml system-wide in linux, you can also use a package manager, like aptitude or yum:
$ sudo apt-get install python-yaml
$ sudo yum install python-yaml
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Drop all duplicate rows across multiple columns in Python Pandas
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What if my columns are not explicitly labelled? How do I select the columns just based on their index?
– Hamman Samuel
Feb 9 '17 at 21:42
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Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
I have got a 2.67 GHz Celeron processor, and 1.21 GB of RAM on a x86 Windows XP Professional machine.
77 Answer...