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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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python numpy ValueError: operands could not be broadcast together with shapes
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You are looking for np.matmul(X, y). In Python 3.5+ you can use X @ y.
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Writing a Python list of lists to a csv file
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Python's built-in CSV module can handle this easily:
import csv
with open("output.csv", "wb") as f:
writer = csv.writer(f)
writer.writerows(a)
This assumes your list is defined as a, as it is in your question. You...
Escape quotes in JavaScript
... in the HTML context. You need to replace the double-quote with the proper XML entity representation, ".
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Add Variables to Tuple
I am learning Python and creating a database connection.
While trying to add to the DB, I am thinking of creating tuples out of information and then add them to the DB.
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Why are trailing commas allowed in a list?
I am curious why in Python a trailing comma in a list is valid syntax, and it seems that Python simply ignores it:
5 Answer...
C# DLL config file
...d to any particular assembly, but for which you want to make use of .NET's XML schema, config section and config element mechanisms, etc. This entails creating an ExeConfigurationFileMap object, loading in the data to identify where the config file will be stored, and then calling ConfigurationMana...
Does Flask support regular expressions in its URL routing?
....randomify = randomify
self.regex = '(?:yes|no|maybe)'
def to_python(self, value):
if value == 'maybe':
if self.randomify:
return not randrange(2)
raise ValidationError()
return value == 'yes'
def to_url(self, value):
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Change drawable color programmatically
...t work like a charm! Thanks a lot! Note: It also works for when you have a xml drawable in your imageView/AppCompatImageView
– Sjd
Sep 15 '17 at 13:10
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How to get the ASCII value of a character
How do I get the ASCII value of a character as an int in Python ?
5 Answers
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