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Read .mat files in Python
Is it possible to read binary MATLAB .mat files in Python?
8 Answers
8
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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
...ly commit at the end of the statement.
What is happening is, some other thread is holding a record lock on some record (you're updating every record in the table!) for too long, and your thread is being timed out.
You can see more details of the event by issuing a
SHOW ENGINE INNODB STATUS
aft...
How to read the RGB value of a given pixel in Python?
...
For future readers: pip install pillow will install PIL successfully and fairly quickly (may need sudo if not in a virtualenv).
– Christopher Shroba
Aug 30 '15 at 1:59
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What GRANT USAGE ON SCHEMA exactly do?
...Postgres database, so this is probably a stupid question. I assigned basic read-only permissions to the db role that must access the database from my php scripts, and I have a curiosity: if I execute
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How to profile a bash shell script slow startup?
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Profiling bash (4 answers)
Edit: March 2016 add script method
Reading this and because profiling is an important step, I've done some test and research about this whole SO question and already posted answers.
There is 4+ answer:
The first is based on @DennisWilliamson's idea but with...
How to convert an Stream into a byte[] in C#? [duplicate]
...
Call next function like
byte[] m_Bytes = StreamHelper.ReadToEnd (mystream);
Function:
public static byte[] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{
originalPosition = stream.Position;
...
Easiest way to read from a URL into a string in .NET
...DownloadString("https://stackoverflow.com/questions/1048199/easiest-way-to-read-from-a-url-into-a-string-in-net/1048204");) - works absolutely fine. Whatever is happening: it isn't https that is the immediate problem. Are you sure the site has a valid cert?
– Marc Gravell♦
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How do I pass a string into subprocess.Popen (using the stdin argument)?
...).stdin
Warning Use communicate() rather than
stdin.write(), stdout.read() or
stderr.read() to avoid deadlocks due
to any of the other OS pipe buffers
filling up and blocking the child
process.
So your example could be written as follows:
from subprocess import Popen, PIPE, STDOUT
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How to search for a string in text files?
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The reason why you always got True has already been given, so I'll just offer another suggestion:
If your file is not too large, you can read it into a string, and just use that (easier and often faster than reading and checking line per line):
with open('example....
Python concatenate text files
...te these files into a new file. I could open each file by f = open(...) , read line by line by calling f.readline() , and write each line into that new file. It doesn't seem very "elegant" to me, especially the part where I have to read//write line by line.
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