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Why does pylint object to single character variable names?
I'm still getting used to python conventions and using pylint to make my code more pythonic, but I'm puzzled by the fact that pylint doesn't like single character variable names. I have a few loops like this:
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How to store a dataframe using Pandas
...tter for interoperability, as a faster alternative to JSON, or if you have python object/text-heavy data (see this question).
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How to get a Static property with Reflection
... edited Sep 14 '11 at 20:26
Jérôme Verstrynge
49.3k7777 gold badges250250 silver badges417417 bronze badges
answered Jun 28 '11 at 18:40
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converting Java bitmap to byte array
... edited Dec 28 '18 at 15:24
André Schild
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answered Dec 8 '15 at 20:34
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ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
... the two arrays to be evaluated in boolean context (by
calling __bool__ in Python3 or __nonzero__ in Python2).
Your original code
mask = ((r["dt"] >= startdate) & (r["dt"] <= enddate))
selected = r[mask]
looks correct. However, if you do want and, then instead of a and b use (a-b).any...
Counting inversions in an array
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In Python
# O(n log n)
def count_inversion(lst):
return merge_count_inversion(lst)[1]
def merge_count_inversion(lst):
if len(lst) <= 1:
return lst, 0
middle = int( len(lst) / 2 )
left, a = merge_cou...
How to set margin of ImageView using code, not xml
...an we use a dpi value instead of pixel?
– Pascal Piché
Mar 7 '12 at 17:19
10
You can scale the p...
Get list of all routes defined in the Flask app
...ution above is too complex.
Just open a new shell under your project:
python
>>> from app import app
>>> app.url_map
The first 'app' is my project script: app.py,
another is my web's name.
(this solution is for tiny web with a little route)
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Scala Programming for Android
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For tutorials and examples, see also Stéphane Micheloud's "Exploring Android" page: http://lamp.epfl.ch/~michelou/android/
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Android Dialog: Removing title bar
...ed Apr 17 '15 at 13:34
Juan Cortés
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answered Jun 7 '11 at 10:11
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