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Python string.replace regular expression [duplicate]
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re.sub is definitely what you are looking for. And so you know, you don't need the anchors and the wildcards.
re.sub(r"(?i)interfaceOpDataFile", "interfaceOpDataFile %s" % filein, line)
will do the same thing--matching the first substring tha...
Failed binder transaction when putting an bitmap dynamically in a widget
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What I don't quite understand is what happens here exactly. I'm using a ViewPager with a fairly large dataset, yet it does remember everything between pages despite the binder error spam. Does the bundle get written to local ...
PHP and MySQL - how to avoid password in source code? [duplicate]
...t's not a world-accessible file, it certainly shouldn't be web accessible. What I mean by this is that you would either a) Tell your web server not to serve your configuration file (IIS already does this with web.config files and serves a HTTP 404.8 status instead of the contents) or b) Move it outs...
Fetch frame count with ffmpeg
...nstead:
ffmpeg -i input.mkv -map 0:v:0 -c copy -f null -
This is a somewhat fast method.
Refer to frame= near the end of the console output.
Add the -discard nokey input option (before -i) to only count key frames.
Edit lists
Ignore the MP4/M4V/M4A/MOV edit list with the -ignore_editlist 1 in...
Rolling or sliding window iterator?
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@TakenMacGuy: I dunno what the author of that recipe's reasoning is, but I'd also choose 2. 2 is the smallest useful window size (otherwise you're just iterating and don't need the window), and it is also common to need to know the previous (or ne...
Python loop counter in a for loop [duplicate]
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gs, what if you only need to get the element every once in a while, but you need the index every time? It seems like in those situations this could be beneficial because you aren't creating a new variable each time.
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How can I copy data from one column to another in the same table?
...mnA. Like other answer says - don't forget the WHERE clause to update only what's needed.
– Carl di Ortus
Feb 9 '18 at 8:45
5
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Finding local IP addresses using Python's stdlib
...ines having the hostname in /etc/hosts as 127.0.0.1), a paliative would be what gimel shows, use socket.getfqdn() instead. Of course your machine needs a resolvable hostname.
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How to replace all occurrences of a string?
...king about performance. When I did wonder which was more efficient, and by what margin, I used it as an excuse to find out.
On my Chrome Windows 8 machine, the regular expression based implementation is the fastest, with the split and join implementation being 53% slower. Meaning the regular expre...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...key(1), locks key(2);
it will be impossible to get a deadlock.
So this is what I suggest:
Make sure you have no other queries that lock access more than one key at a time except for the delete statement. if you do (and I suspect you do), order their WHERE in (k1,k2,..kn) in ascending order.
Fix y...