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How to view the SQL queries issued by JPA?
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You would put this line in your persistence.xml for any body that is currious. It would be under the <properties> node... Sorry if that is obvious, I was just confused about where to put it myself.
– SoftwareSavant
Apr 18 '...
Should I use encoding declaration in Python 3?
Python 3 uses UTF-8 encoding for source-code files by default. Should I still use the encoding declaration at the beginning of every source file? Like # -*- coding: utf-8 -*-
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How can I open multiple files using “with open” in Python?
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As of Python 2.7 (or 3.1 respectively) you can write
with open('a', 'w') as a, open('b', 'w') as b:
do_something()
In earlier versions of Python, you can sometimes use
contextlib.nested() to nest context managers. This won...
Python division
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You're using Python 2.x, where integer divisions will truncate instead of becoming a floating point number.
>>> 1 / 2
0
You should make one of them a float:
>>> float(10 - 20) / (100 - 10)
-0.1111111111111111
or fr...
How to get Linux console window width in Python
Is there a way in python to programmatically determine the width of the console? I mean the number of characters that fits in one line without wrapping, not the pixel width of the window.
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How to get the home directory in Python?
...rms:
from os.path import expanduser
home = expanduser("~")
If you're on Python 3.5+ you can use pathlib.Path.home():
from pathlib import Path
home = str(Path.home())
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IntelliJ and Tomcat.. Howto..?
...re is no conf folder. I create one, then I get an error there is no server.xml file. With NetBeans, all that stuff for the base directory was automatically created in the empty folder I’d created.
– Basil Bourque
Apr 16 '17 at 10:56
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How to create a trie in Python
...thub.com/kmike/marisa-trie
Static memory-efficient Trie structures for Python (2.x and 3.x).
String data in a MARISA-trie may take up to 50x-100x less memory than
in a standard Python dict; the raw lookup speed is comparable; trie
also provides fast advanced methods like prefix search.
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virtualenv --no-site-packages and pip still finding global packages?
...ualenv --no-site-packages would create a completely separate and isolated Python environment, but it doesn't seem to.
13 A...
How can I create a Set of Sets in Python?
I'm trying to make a set of sets in Python. I can't figure out how to do it.
5 Answers
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