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Parsing boolean values with argparse
... use "True"/"False" on the command line itself; however with this example, python3 test.py --do-something False fails with error: unrecognized arguments: False, so it does not really answer the question.
– sdbbs
Nov 26 '19 at 10:04
...
Python's os.makedirs doesn't understand “~” in my path
... folders in path (if required)
srb@srb-pc:~/hello$ ls
srb@srb-pc:~/hello$ python3
>>> from srblib import verify_folder
>>> verify_folder('~/hello/A/B')
>>> exit()
srb@srb-pc:~/hello$ ls
A
srb@srb-pc:~/hello$ ls A
B
srb@srb-pc:~/hello$
This function works like mkdir -p...
Nohup is not writing log to output file
...lity there could be different implementations on different platforms. btw, python3 I/O is no longer C stdio-based but it has similar buffering behavior.
– jfs
Dec 1 '14 at 16:30
...
Saving and loading objects and using pickle
...ent call last):
File "<stdin>", line 1, in <module>
File "C:\Python31\lib\pickle.py", line
1365, in load encoding=encoding,
errors=errors).load() EOFError
After you have read the contents of the file, the file pointer will be at the end of the file - there will be no further data t...
Python Requests library redirect new url
...
For python3.5, you can use the following code:
import urllib.request
res = urllib.request.urlopen(starturl)
finalurl = res.geturl()
print(finalurl)
sha...
List comprehension vs. lambda + filter
...
didn't know reduce was demoted in Python3. thanks for the insight! reduce() is still quite helpful in distributed computing, like PySpark. I think that was a mistake..
– Tagar
Jun 28 '15 at 16:10
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Compare if two variables reference the same object in python
...
python3.6: a = 98765; b = 98765; a is b => True. Something has changed apparently.
– Mikhail Kalashnikov
Mar 17 '17 at 12:52
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Python int to binary string?
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f"{37:b}" in Python3.7 or later.
– D. A.
Jul 18 '19 at 4:30
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show 1 more comm...
List of lists changes reflected across sublists unexpectedly
...ad of the throwaway variable n:
[[1]*4 for _ in xrange(3)] # and in python3 [[1]*4 for _ in range(3)]
Also, as a much more Pythonic way you can use itertools.repeat() to create an iterator object of repeated elements :
>>> a=list(repeat(1,4))
[1, 1, 1, 1]
>>> a[0]=5
>&...
What is the difference between dict.items() and dict.iteritems() in Python2?
... you want to return an iterator in Py3.x, you could use iter(dictview) :
$ python3.3
>>> d = {'one':'1', 'two':'2'}
>>> type(d.items())
<class 'dict_items'>
>>>
>>> type(d.keys())
<class 'dict_keys'>
>>>
>>>
>>> ii = iter(d....