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How can I set a website image that will show as preview on Facebook?
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1. Include the Open Graph XML namespace extension to your HTML declaration
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:fb="http://ogp.me/ns/fb#">
2. Inside your <head></head> use the following meta tag to define the i...
What's the best way to parse a JSON response from the requests library?
I'm using the python requests module to send a RESTful GET to a server, for which I get a response in JSON. The JSON response is basically just a list of lists.
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Why does this iterative list-growing code give IndexError: list assignment index out of range?
...ist. You'd just do:
j = list(i)
Alternatively, if you wanted to use the Python list like an array in other languages, then you could pre-create a list with its elements set to a null value (None in the example below), and later, overwrite the values in specific positions:
i = [1, 2, 3, 5, 8, 13]...
What does enumerate() mean?
What does for row_number, row in enumerate(cursor): do in Python?
5 Answers
5
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Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
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Check if a Python list item contains a string inside another string
...bc-456'])
The test for iterable may not be the best. Got it from here: In Python, how do I determine if an object is iterable?
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best way to preserve numpy arrays on disk
...storing large numpy arrays. There are two options for dealing with hdf5 in python:
http://www.pytables.org/
http://www.h5py.org/
Both are designed to work with numpy arrays efficiently.
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Parsing boolean values with argparse
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nargs='?' means zero or one argument. docs.python.org/3/library/argparse.html#nargs
– Maxim
Aug 3 '17 at 12:05
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Using PowerShell credentials without being prompted for a password
... Export-Credential (Get-Credential) $CredPath
}
$cred = Import-Clixml $CredPath
$cred.Password = $cred.Password | ConvertTo-SecureString
$Credential = New-Object System.Management.Automation.PsCredential($cred.UserName, $cred.Password)
Return $Credential
}
And this one:
#====...
What are the differences between numpy arrays and matrices? Which one should I use?
... 2]
# [3 4]]
print(a*b)
# [[13 20]
# [ 5 8]]
On the other hand, as of Python 3.5, NumPy supports infix matrix multiplication using the @ operator, so you can achieve the same convenience of matrix multiplication with ndarrays in Python >= 3.5.
import numpy as np
a = np.array([[4, 3], [2, 1...