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Why can't Python's raw string literals end with a single backslash?
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The whole misconception about python's raw strings is that most of people think that backslash (within a raw string) is just a regular character as all others. It is NOT. The key to understand is this python's tutorial sequence:
When an 'r' or 'R' pre...
How do you clear Apache Maven's cache?
...d/changed the updatePolicy settings for your repositories in your settings.xml.
This element specifies how often updates should attempt to occur.
Maven will compare the local POM's timestamp (stored in a repository's
maven-metadata file) to the remote. The choices are: always, daily
(defau...
How do I pass a string into subprocess.Popen (using the stdin argument)?
...grep_stdout.decode())
# -> four
# -> five
# ->
On the current Python 3 version, you could use subprocess.run, to pass input as a string to an external command and get its exit status, and its output as a string back in one call:
#!/usr/bin/env python3
from subprocess import run, PIPE
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Pythonic way of checking if a condition holds for any element of a list
I have a list in Python, and I want to check if any elements are negative. Specman has the has() method for lists which does:
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How to use a decimal range() step value?
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numpy is such an ubiquitous component of python that I consider this answer to be the most 'pythonic' of all.
– airstrike
Sep 11 '13 at 19:20
23
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Python “SyntaxError: Non-ASCII character '\xe2' in file”
I am writing some python code and I am receiving the error message as in the title, from searching this has to do with the character set.
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How to put multiple statements in one line?
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Unfortunately, what you want is not possible with Python (which makes Python close to useless for command-line one-liner programs). Even explicit use of parentheses does not avoid the syntax exception. You can get away with a sequence of simple statements, separated by semi-...
How do you debug a regex? [closed]
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I use Kodos - The Python Regular Expression Debugger:
Kodos is a Python GUI utility for creating, testing and debugging regular expressions for the Python programming language. Kodos should aid any developer to efficiently and effortlessly...
JAXB creating context and marshallers cost
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How big was the xml file you were parsing. Do you see significant improvement with very large xml files?
– John
Jul 6 '15 at 13:38
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A clean, lightweight alternative to Python's twisted? [closed]
...d to enable concurrent requests to occur at the same time. That was in my Python youth, in the days before I knew about the GIL and the associated woes it creates for multithreaded code (IE, most of the time stuff just ends up serialized!)...
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