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how to draw directed graphs using networkx in python?
... not the only one saying it can't be helped. I couldn't render this with ipython notebook I had to go straight from python which was the problem with getting my edge weights in sooner.
import networkx as nx
import numpy as np
import matplotlib.pyplot as plt
import pylab
G = nx.DiGraph()
G.add_e...
Hashing a dictionary?
...hing needs to be consistent across different machines. Implementations of python on cloud platforms like Heroku and GAE will return different values for hash() on different instances making it useless for anything that must be shared between two or more "machines" (dynos in the case of heroku)
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Get IP address of visitors using Flask for Python
... files, using the Flask micro-framework (based on Werkzeug ) which uses Python (2.6 in my case).
10 Answers
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Wget output document and headers to STDOUT
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the -S option wasn't supported on my alpine linux container. I omitted it and all was good
– Christian Bongiorno
Jan 31 '17 at 17:37
1
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Python dict how to create key or append an element to key?
...nd choose what you like. I've ordered them in a way that I think is most "pythonic", and commented the pros and cons that might not be obvious at first glance:
Using collections.defaultdict:
import collections
dict_x = collections.defaultdict(list)
...
dict_x[key].append(value)
Pros: Probably...
Why can't I use a list as a dict key in python?
I'm a bit confused about what can/can't be used as a key for a python dict.
11 Answers
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logger configuration to log to file and print to stdout
I'm using Python's logging module to log some debug strings to a file which works pretty well. Now in addition, I'd like to use this module to also print the strings out to stdout. How do I do this? In order to log my strings to a file I use following code:
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Find the division remainder of a number
How could I go about finding the division remainder of a number in Python?
12 Answers
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How to check for valid email address? [duplicate]
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import re
if not re.match(r"... regex here ...", email):
# whatever
Python ≥3.4 has re.fullmatch which is preferable to re.match.
Note the r in front of the string; this way, you won't need to escape things twice.
If you have a large number of regexes to check, it might be faster to compi...
Python - doctest vs. unittest [closed]
I'm trying to get started with unit testing in Python and I was wondering if someone could explain the advantages and disadvantages of doctest and unittest.
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