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Removing all non-numeric characters from string in Python
...both strings and unicode objects in Python2, and both strings and bytes in Python3:
# python <3.0
def only_numerics(seq):
return filter(type(seq).isdigit, seq)
# python ≥3.0
def only_numerics(seq):
seq_type= type(seq)
return seq_type().join(filter(seq_type.isdigit, seq))
...
python multithreading wait till all threads finished
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In Python3, since Python 3.2 there is a new approach to reach the same result, that I personally prefer to the traditional thread creation/start/join, package concurrent.futures: https://docs.python.org/3/library/concurrent.futu...
Regex to check whether a string contains only numbers [duplicate]
...ct malformed octal, I should match valid hex and decide whether to include Python3/Java numbers like 123_456 or C++ 123'456. \d+ seems like a middle ground in the absence of more context like a specific programming or human language and was strongly suggested by the author's first attempt.
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Unix command-line JSON parser? [closed]
...u have the option to sort by key explicitly:
$ echo '{"foo":1, "bar":2}' | python3 -m json.tool --sort-keys
{
"bar": 2,
"foo": 1
}
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How can I check if an ip is in a network in Python?
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For python3
import ipaddress
ipaddress.IPv4Address('192.168.1.1') in ipaddress.IPv4Network('192.168.0.0/24')
ipaddress.IPv4Address('192.168.1.1') in ipaddress.IPv4Network('192.168.0.0/16')
Output :
False
True
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retrieve links from web page using python and BeautifulSoup [closed]
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Updated code for python3 and latest bs4 - gist.github.com/PandaWhoCodes/7762fac08c4ed005cec82204d7abd61b
– Ashish Cherian
Sep 30 '19 at 6:01
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Unable to import a module that is definitely installed
... me. I am working with Python 3.6 on Mac, so sudo chmod 777 /usr/local/lib/python3.6/site-packages did the trick
– Antonio Serrano
May 8 '18 at 16:20
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Format floats with standard json module
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In Python3 it gives "Map object is not JSON serializable" error, but you can resolve converting the map() to a list with list( map(pretty_floats, obj) )
– Guglie
Oct 11 '18 at 23:54
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How to get the home directory in Python?
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The pathlib.Path.home() is available from Python3.5 onwards (docs.python.org/3/library/pathlib.html#pathlib.Path.home)
– Ivan De Paz Centeno
Oct 4 '17 at 14:24
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How do I find the location of Python module sources?
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for python3.x, the imp package is deprecated (since version 3.4) in favor of importlib (since 3.1) docs.python.org/3.6/library/imp.html
– michael
Sep 16 '18 at 3:53
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