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What does 'wb' mean in this code, using Python?
...le in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the end-of-line characters in
text files are automatically altered
slightly when data is read or written.
This behind-the-scenes modification to
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Is there an equivalent of lsusb for OS X
... That's a nice utility, but it's still just a fraction of what lsusb on linux can get you. lsusb on linux can give you the full contents of the device's configuration descriptors. Without that, I'm afraid this tool is mostly just a pretty-printer.
– Ted Middleton
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What's the best way to parse command line arguments? [closed]
...he easiest , tersest , and most flexible method or library for parsing Python command line arguments?
15 Answers
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How to dynamically load a Python class
Given a string of a Python class, e.g. my_package.my_module.MyClass , what is the best possible way to load it?
10 Answers...
Accessing dict_keys element by index in Python3
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Call list() on the dictionary instead:
keys = list(test)
In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dictionary into a list results in a list of all the keys:
>>...
Initialising an array of fixed size in python [duplicate]
... The question specified ".. yet to be populated with values". The Python docs indicate "None is typically used to represent absence of a value". My example produced such a list of the defined size, in the shortest amount of code. Its the closest thing in idiomatic Python at the time the que...
Replace values in list using Python [duplicate]
...ate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
...: for index, item in enumerate(items):
...: if not (item % 2):
...: items[inde...
Call a python function from jinja2
I am using jinja2, and I want to call a python function as a helper, using a similar syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro.
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Perform commands over ssh with Python
I'm writing a script to automate some command line commands in Python. At the moment I'm doing calls thus:
13 Answers
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Creating a new dictionary in Python
I want to build a dictionary in Python. However, all the examples that I see are instantiating a dictionary from a list, etc . ..
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