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How can I convert JSON to CSV?
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for python3 change line with opening csv file to f = csv.writer(open("test.csv", "w", newline=''))
– PiotrK
Apr 14 '19 at 12:15
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How to overload __init__ method based on argument type?
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with python3, you can use Implementing Multiple Dispatch with Function Annotations as Python Cookbook wrote:
import time
class Date(metaclass=MultipleMeta):
def __init__(self, year:int, month:int, day:int):
self.yea...
How to create a temporary directory and get the path / file name in Python
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In python3, you can do with tempfile.TemporaryDirectory() as dirpath:, and the temporary directory will automatically cleaned up upon exiting the context manager. docs.python.org/3.4/library/…
– Symmetric...
Python, Unicode, and the Windows console
...et PYTHONIOENCODING envvar:
T:\> set PYTHONIOENCODING=:replace
T:\> python3 -c "print(u'[\N{EURO SIGN}]')"
[?]
In Python 3.6+, the encoding specified by PYTHONIOENCODING envvar is ignored for interactive console buffers unless PYTHONLEGACYWINDOWSIOENCODING envvar is set to a non-empty strin...
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
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How can I get a side-by-side diff when I do “git diff”?
...by-side display mode for each of the files with differences.
Install with:
python3 -m pip install --user ydiff
-or-
brew install ydiff
For git log, you can use:
ydiff -ls -w0
-w0 auto-detects your terminal width. See the ydiff GitHub repository page for detail and demo.
Tested in Git 2.18.0, ydi...
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...
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...
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
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List comprehension vs. lambda + filter
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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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