31–40 of 83 posts
There are several items that are dubious at best. Why would you use no_duplicates = list(dict.fromkeys( )) instead of no_duplicates = list(set( )) ?
>>> list(dict.fromkeys([3, 2, 1])) [3, 2, 1] >>> list(set([3, 2, 1])) [1, 2, 3]
That's why there's OrderredDict.
Unless the language explicitly says that dicts hold their order, even if they do, it's an implementation detail, and it should not be relied upon.
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But. to do `help(thing)` you need to know what the _thing_ is. With Python, many times I vaguely know something but dunno what it is exactly. This cheatsheet solves that!
Is there some way to list all modules available for importing? Some times you don't know which modules are available to ask the help for it.
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But. to do `help(thing)` you need to know what the _thing_ is. With Python, many times I vaguely know something but dunno what it is exactly. This cheatsheet solves that!
You can call help on anything . Here I am asking for help on something I have no clue about: >>> from server.db import db >>> help(db) help on Client in module google.cloud.firestore_v1beta1.client object: class Client(google.cloud.client.ClientWithProject) | Client(project=None, credentials=None, database='(default)') | | Client for interacting with Google Cloud Firestore API. | | .. note:: | | Since the Cloud Fires…
Example: Suppose you didn't know that re was what you needed for regular expression, or suppose you forgot how iterators work etc.
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>>> list(dict.fromkeys([3, 2, 1])) [3, 2, 1] >>> list(set([3, 2, 1])) [1, 2, 3]
Dictionaries should not be assumed to keep their orderings anyway. That's why there's OrderredDict. Unless the language explicitly says that dicts hold their order, even if they do, it's an implementation detail, and it should not be relied upon.
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You can call help on anything . Here I am asking for help on something I have no clue about: >>> from server.db import db >>> help(db) help on Client in module google.cloud.firestore_v1beta1.client object: class Client(google.cloud.client.ClientWithProject) | Client(project=None, credentials=None, database='(default)') | | Client for interacting with Google Cloud Firestore API. | | .. note:: | | Since the Cloud Fires…
I think legends 2k means you may not know the name of a function you need to use in something you are trying to implement. Example: Suppose you didn't know that re was what you needed for regular expression, or suppose you forgot how iterators work etc.
Nice, but why does this needs JS to be rendered ?
Because it's rendered directly from README.md. That way it's easier for me, because I don't have to render it every time I make a change (I make a lot of little edits all the time), and project's Github page ( https://github.com/gto76/python-cheatsheet ) always has the same content as webpage.
If you were to use e.g. org-mode for the source document, you could easily export to HTML automatically when the file is saved.
You could also easily use a git hook to run e.g. pandoc to convert md to HTML automatically.
There are many ways of automatically exporting HTML when you save the md source file. Please use one.
Very good page. But the best python cheat sheet is help(the_thing) . python has the second best ever help and discoverability (after Matlab of course!)
I would put it after R help function and, even better, F1 key to get the full documentation of any thing in Rstudio.
Compare the R vector page: https://stat.ethz.ch/R-manual/R-devel/library/base/html/vect...
To the equivalent python documentation: https://docs.python.org/3/tutorial/datastructures.html
if __name__ == '__main__':
main()
if __name__ == '__main__':
sys.exit( main() )Earlier quoted context omitted.
Because it's rendered directly from README.md. That way it's easier for me, because I don't have to render it every time I make a change (I make a lot of little edits all the time), and project's Github page ( https://github.com/gto76/python-cheatsheet ) always has the same content as webpage.
It's quite annoying to have to enable JS for 3 different domains just to see something other than a blank page. It also prevents non-JS browsers and retrievers from seeing content. If you were to use e.g. org-mode for the source document, you could easily export to HTML automatically when the file is saved. You could also easily use a git hook to run e.g. pandoc to convert md to HTML automatically. There are many way…
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It's quite annoying to have to enable JS for 3 different domains just to see something other than a blank page. It also prevents non-JS browsers and retrievers from seeing content. If you were to use e.g. org-mode for the source document, you could easily export to HTML automatically when the file is saved. You could also easily use a git hook to run e.g. pandoc to convert md to HTML automatically. There are many way…
Will look into it, thanks for info.