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How can I print literal curly-brace characters in python string and also use .format on it?
...expression in the brackets instead of using literal text you'll need three sets of brackets:
hello = "HELLO"
print(f"{{{hello.lower()}}}")
produces
{hello}
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UnicodeEncodeError: 'charmap' codec can't encode - character maps to , print function [du
...is:
Change the output encoding, so it will always output UTF-8. See e.g. Setting the correct encoding when piping stdout in Python, but I could not get these example to work.
Following example code makes the output aware of your target charset.
# -*- coding: utf-8 -*-
import sys
print sys.stdout...
How can one use multi threading in PHP applications
...ble by using HTTP requests as asynchronous calls.
With the curl's timeout setting set to 1 and using the same session_id for the processes you want to be associated with each other, you can communicate with session variables as in my example below. With this method you can even close your browser a...
What is Hindley-Milner?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
List of lists changes reflected across sublists unexpectedly
I needed to create a list of lists in Python, so I typed the following:
14 Answers
1...
Convert an integer to a float number
...ch describes all types. In your case it is numeric types:
uint8 the set of all unsigned 8-bit integers (0 to 255)
uint16 the set of all unsigned 16-bit integers (0 to 65535)
uint32 the set of all unsigned 32-bit integers (0 to 4294967295)
uint64 the set of all unsigned 64-bit ...
Copy files without overwrite
...
Here it is in batch file form:
@echo off
set source=%1
set dest=%2
for %%f in (%source%\*) do if not exist "%dest%\%%~nxf" copy "%%f" "%dest%\%%~nxf"
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How to Batch Rename Files in a macOS Terminal?
I have a folder with a series of files named:
7 Answers
7
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multiprocessing: How do I share a dict among multiple processes?
...
A general answer involves using a Manager object. Adapted from the docs:
from multiprocessing import Process, Manager
def f(d):
d[1] += '1'
d['2'] += 2
if __name__ == '__main__':
manager = Manager()
d = manager.dict()
d[1] = '1'
d['2'] = 2
p1 = Proce...
Removing a list of characters in string
..., omit unwanted characters and join the resulting list:
>>> sc = set(chars_to_remove)
>>> ''.join([c for c in subj if c not in sc])
'ABC'
(Note that the generator version ''.join(c for c ...) will be less efficient).
B. Create a regular expression on the fly and re.sub with an ...