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Confused by python file mode “w+”
...rns 'somedata\n'
Note the f.seek(0) -- if you forget this, the f.read() call will try to read from the end of the file, and will return an empty string.
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What's the correct way to convert bytes to a hex string in Python 3?
...ii.hexlify('foo'.encode('utf8'))
b'666f6f'
>>> binascii.unhexlify(_).decode('utf8')
'foo'
See this answer:
Python 3.1.1 string to hex
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Find the Smallest Integer Not in a List
... in O(N) time and O(1) additional space. Just go through the array sequentially and for every index write the value at the index to the index specified by value, recursively placing any value at that location to its place and throwing away values > N. Then go again through the array looking for t...
.htaccess redirect all pages to new domain
Which redirect rule would I use to redirect all pages under olddomain.example to be redirected to newdomain.example ?
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How to enable PHP's openssl extension to install Composer?
I am trying to install Laravel in WAMP setup. I am getting a warning message for not enabling openssl which I had already done in WAMP.
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Negative weights using Dijkstra's Algorithm
...u have suggested will indeed find the shortest path in this graph, but not all graphs in general. For example, consider this graph:
Assume the edges are directed from left to right as in your example,
Your algorithm will work as follows:
First, you set d(A) to zero and the other distances to ...
Removing double quotes from variables in batch file creates problems with CMD environment
... Thanks, this was what I was after SET BathFileAndPath=%~0 (actually, my param array starts with 1 so I used SET BathFileAndPath=%~1
– Valamas
Jan 21 '14 at 5:39
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How to get value of selected radio button?
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@mzalazar No, every radio-button has its own ID but all have the same name which is what puts them into one group so if you select one the other one gets deselected. With Kamran Ahmed answer you can check which of the radio buttons in the group is selected and get only the val...
How can I verify if one list is a subset of another?
I need to verify if a list is a subset of another - a boolean return is all I seek.
15 Answers
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Determine which MySQL configuration file is being used
...inux, then start the 'mysqld' with strace, for eg strace ./mysqld.
Among all the other system calls, you will find something like:
stat64("/etc/my.cnf", 0xbfa3d7fc) = -1 ENOENT (No such file or directory)
stat64("/etc/mysql/my.cnf", {st_mode=S_IFREG|0644, st_size=4227, ...}) = 0
open("/etc/...