大约有 6,100 项符合查询结果（耗时：0.0247秒） [XML]
Unpacking a list / tuple of pairs into two lists / tuples [duplicate]
... To the OP, stackoverflow.com/questions/5239856/foggy-on-asterisk-in-python is helpful if you don't know about the "splat" operator.
– dicato
Sep 26 '11 at 18:07
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Negative list index? [duplicate]
... the end of the list, so n[-1] means the last item in the list n. Any good Python tutorial should have told you this.
It's an unusual convention that only a few other languages besides Python have adopted, but it is extraordinarily useful; in any other language you'll spend a lot of time writing n[...
numpy matrix vector multiplication [duplicate]
...pected, but I simply cannot find any information about how this is done in Python's Numpy module.
1 Answer
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Split string every nth character?
...you tell it. The above answer is really only just a for loop but expressed pythonically. Also, if you need to remember a "simplistic" answer, there are at least hundreds of thousands of ways to remember them: starring the page on stackoverflow; copying and then pasting into an email; keeping a "help...
How to save traceback / sys.exc_info() values in a variable?
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For Python3, exc_tuple[1] (aka value) is the instance of the exception, not the "String passed as parameter". See: docs.python.org/3/library/sys.html#sys.exc_info
– Jinghao Shi
Oct 6 '18 at ...
Elegant Python function to convert CamelCase to snake_case?
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Personally I am not sure how anything using regular expressions in python can be described as elegant. Most answers here are just doing "code golf" type RE tricks. Elegant coding is supposed to be easily understood.
def to_snake_case(not_snake_case):
final = ''
for i in xrange(len(n...
Split views.py in several files
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In Django everything is a Python module (*.py). You can create a view folder with an __init__.py inside and you still will be able to import your views, because this also implements a Python module. But an example would be better.
Your original views...
Convert DataFrame column type from string to datetime, dd/mm/yyyy format
...tetime(df['date_col'], format='%d/%m/%Y')
More details on format here:
Python 2 https://docs.python.org/2/library/datetime.html#strftime-strptime-behavior
Python 3 https://docs.python.org/3.7/library/datetime.html#strftime-strptime-behavior
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Max retries exceeded with URL in requests
...cause the target machine actively refused it".
There is an issue at about python.requests lib at Github, check it out here
To overcome this issue (not so much an issue as it is misleading debug trace) you should catch connection related exceptions like so:
try:
page1 = requests.get(ap)
except...
How do I find the duplicates in a list and create another list with them?
How can I find the duplicates in a Python list and create another list of the duplicates? The list only contains integers.
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