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Assigning a variable NaN in python without numpy
...answer downvoted unreasonably. I'm writing lots of small parsing tests in .txt files and using ast.literal_eval to get expected output part. It's impossible to call float('nan') there, and this answer was helpful for me.
– Vitalik Verhovodov
Mar 26 '18 at 15:59...
NTFS performance and large volumes of files and directories
...
Console.WriteLine("prepare...");
const string FILE_NAME = "\\file.txt";
for (int i = 0; i < numFilesInDir; i++) {
string filename = dir + Guid.NewGuid();
if (testDirs) {
var dirName = filename + "D";
Directory.CreateDirectory(dirName);
...
How do I check for a network connection?
...DNS lookup on www.msftncsi.com, then requests http://www.msftncsi.com/ncsi.txt. This file is a plain-text file and contains only the text 'Microsoft NCSI'.
NCSI sends a DNS lookup request for dns.msftncsi.com. This DNS address should resolve to 131.107.255.255. If the address does not match, then it...
What are commit-ish and tree-ish in Git?
...--------------------
| 15. <rev>:<path> | HEAD:README.txt, master:sub-directory/
----------------------------------------------------------------------
| Tree-ish? | Examples
----------------------------------------------------------------------
| ...
How to run functions in parallel?
...ay
ray.init()
dir1 = 'C:\\folder1'
dir2 = 'C:\\folder2'
filename = 'test.txt'
addFiles = [25, 5, 15, 35, 45, 25, 5, 15, 35, 45]
# Define the functions.
# You need to pass every global variable used by the function as an argument.
# This is needed because each remote function runs in a different ...
What is the EAFP principle in Python?
...ght that we could access the file.
import os
my_file = "/path/to/my/file.txt"
# Race condition
if os.access(my_file, os.R_OK):
with open(my_file) as f:
print(f.read())
else:
print("File can't be accessed")
EAFP - Easier to Ask for Forgiveness than Permission :
In this example, ...
Why is printing to stdout so slow? Can it be sped up?
...e terminal, which you can do by modifying your example to:
fp = file("out.txt", "w", 1) # line-buffered, like stdout
[...]
for x in range(lineCount):
fp.write(line)
os.fsync(fp.fileno()) # wait for the write to actually complete
I ran your file writing test on my machine, and with ...
String literals and escape characters in postgresql
...and run the command \copy xxxxxxxxxxx FROM /support01/db/data/xxxxxxxxx_7F.txt DELIMITER AS E'\x7f', I get parse error at "'\x7f'". If I have the standard_conforming_strings=off; and use the same command above without the E and the Quotes... ( DELIMITER AS \x7f) I get the warning message, but the da...
Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
...To write to a file
import codecs
import json
with codecs.open('your_file.txt', 'w', encoding='utf-8') as f:
json.dump({"message":"xin chào việt nam"}, f, ensure_ascii=False)
To print to stdout
import json
print(json.dumps({"message":"xin chào việt nam"}, ensure_ascii=False))
...
What's the algorithm to calculate aspect ratio?
...d.com/hwsurvey, section 'Primary Display Resolution'
steam_file = './steam.txt'
# Taken from http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Vector_Video_Standards4.svg/750px-Vector_Video_Standards4.svg.png
accepted_ratios = ['5:4', '4:3', '3:2', '8:5', '5:3', '16:9', '17:9']
#-----------...