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How would you make a comma-separated string from a list of strings?
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Note if you are using python 2.7 (which you shouldn't by now) then using str will raise an exception if any item in the list has unicode.
– kroiz
May 26 at 13:54
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Simple argparse example wanted: 1 argument, 3 results
The documentation for the argparse python module , while excellent I'm sure, is too much for my tiny beginner brain to grasp right now. I don't need to do math on the command line or meddle with formatting lines on the screen or change option characters. All I want to do is "If arg is A, do this...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
I've recently moved over to using IPython notebooks as part of my workflow. However, I've not been successful in finding a way to import .py files into the individual cells of an open IPython notebook so that they can edited, run and then saved. Can this be done?
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How to delete a specific line in a file?
...l of nicknames. How can I delete a specific nickname from this file, using Python?
17 Answers
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How to retrieve an element from a set without removing it?
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tl;dr
for first_item in muh_set: break remains the optimal approach in Python 3.x. Curse you, Guido.
y u do this
Welcome to yet another set of Python 3.x timings, extrapolated from wr.'s excellent Python 2.x-specific response. Unlike AChampion's equally helpful Python 3.x-specific response, th...
Plot a bar using matplotlib using a dictionary
...lues()), align='center')
plt.xticks(range(len(D)), list(D.keys()))
# # for python 2.x:
# plt.bar(range(len(D)), D.values(), align='center') # python 2.x
# plt.xticks(range(len(D)), D.keys()) # in python 2.x
plt.show()
Note that the penultimate line should read plt.xticks(range(len(D)), list(D.k...
Explaining Apache ZooKeeper
... resources:
The paper: https://pdos.csail.mit.edu/6.824/papers/zookeeper.pdf
The lecture offered by MIT 6.824 from 36:00: https://youtu.be/pbmyrNjzdDk?t=2198
I would suggest watching the video, read the paper, and then watch the video again. It would be easier to understand if you know Raft befo...
How do I merge a list of dicts into a single dict?
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>>> result
{'a':1,'c':1,'b':2,'d':2}
As a comprehension:
# Python >= 2.7
{k: v for d in L for k, v in d.items()}
# Python < 2.7
dict(pair for d in L for pair in d.items())
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Is there a command line utility for rendering GitHub flavored Markdown?
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I wrote a small CLI in Python and added GFM support. It's called Grip (Github Readme Instant Preview).
Install it with:
$ pip install grip
And to use it, simply:
$ grip
Then visit localhost:5000 to view the readme.md file at that location.
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Best programming aids for a quadriplegic programmer
...stem is not perfect, but it works.
I program mostly in C++, but I also use python.
If you want to, I will help you with that.
I have to warn you, it takes few months to get used to speech to text software and train it. moreover, I am not native English speaker, am sure that gets in the way
Do not...