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C++ IDE for Linux? [closed]
...like me — you end up not using them. Here’s just a small and biased selection:
For Python development, there’s PyCharm
For R, there’s RStudio
For JavaScript and TypeScript, there’s Visual Studio Code (which is also a good all-round editor)
And finally, many people love the Sublime Text...
Merge PDF files
... that works with both versions.
#!/usr/bin/env python
import sys
try:
from PyPDF2 import PdfFileReader, PdfFileWriter
except ImportError:
from pyPdf import PdfFileReader, PdfFileWriter
def pdf_cat(input_files, output_stream):
input_streams = []
try:
# First open all the fil...
Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
... ignored.
chmod +x is demonstrated at: How do you do a simple "chmod +x" from within python?
Tested in Ubuntu 16.04, Python 3.5.2.
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What is the fastest way to send 100,000 HTTP requests in Python?
... Make sure you install the epoll reactor; otherwise you'll be using select/poll, and it will be very slow. Also, if you're going to actually try to have 100,000 connections open simultaneously (assuming your program is written that way, and the URLs are on different servers), you'll need to ...
What is the difference between Swing and AWT?
...ross platforms - for instance, they may try to make calls into native code from Java.
Because AWT uses native GUI widgets, your OS knows about them and handles putting them in front of each other, etc., whereas Swing widgets are meaningless pixels within a window from your OS's point of view. Swing...
List directory tree structure in python?
...nswers above, but for python3, arguably readable and arguably extensible:
from pathlib import Path
class DisplayablePath(object):
display_filename_prefix_middle = '├──'
display_filename_prefix_last = '└──'
display_parent_prefix_middle = ' '
display_parent_prefix_last...
GDB missing in OS X v10.9 (Mavericks)
... Hi Mr. Catfish, I got it to work. It just required compiling it from source with the correct ./configure command :) thx!
– l'L'l
Oct 24 '13 at 6:23
2
...
How to identify whether a file is normal file or directory
...em paths. The relavant methods would be .is_file() and .is_dir():
In [1]: from pathlib import Path
In [2]: p = Path('/usr')
In [3]: p.is_file()
Out[3]: False
In [4]: p.is_dir()
Out[4]: True
In [5]: q = p / 'bin' / 'vim'
In [6]: q.is_file()
Out[6]: True
In [7]: q.is_dir()
Out[7]: False
Pathl...
How do I pass a string into subprocess.Popen (using the stdin argument)?
...cking the child
process.
So your example could be written as follows:
from subprocess import Popen, PIPE, STDOUT
p = Popen(['grep', 'f'], stdout=PIPE, stdin=PIPE, stderr=STDOUT)
grep_stdout = p.communicate(input=b'one\ntwo\nthree\nfour\nfive\nsix\n')[0]
print(grep_stdout.decode())
# -> ...
ALTER DATABASE failed because a lock could not be placed on database
... for a couple of minutes)
CREATE DATABASE TESTING123
GO
USE TESTING123;
SELECT NEWID() AS X INTO FOO
FROM sys.objects s1,sys.objects s2,sys.objects s3,sys.objects s4 ,sys.objects s5 ,sys.objects s6
Connections 2 and 3
set lock_timeout 5;
ALTER DATABASE TESTING123 SET SINGLE_USER WITH ROLLBACK...