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What is the Difference Between read() and recv() , and Between send() and write()?
...ions read()/write() are the universal file descriptor functions working on all descriptors.
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How to return dictionary keys as a list in Python?
...]
New unpacking generalizations (PEP 448) were introduced with Python 3.5 allowing you to now easily do:
>>> newdict = {1:0, 2:0, 3:0}
>>> [*newdict]
[1, 2, 3]
Unpacking with * works with any object that is iterable and, since dictionaries return their keys when iterated throug...
UnicodeDecodeError when reading CSV file in Pandas with Python
...= "ISO-8859-1"), or alternatively encoding = "utf-8" for reading, and generally utf-8 for to_csv.
You can also use one of several alias options like 'latin' instead of 'ISO-8859-1' (see python docs, also for numerous other encodings you may encounter).
See relevant Pandas documentation,
python doc...
private final static attribute vs private final attribute
...riable);
That makes the behaviour much more obvious. Modern IDEs will usually suggest changing the second listing into the third.
There is no reason to have an inline declaration initializing the value like the following, as each instance will have its own NUMBER but always with the same value (i...
Override browser form-filling and input highlighting with HTML/CSS
...f that won't work, you can try to set the style via javascript programmatically
$("input[type='text']").bind('focus', function() {
$(this).css('background-color', 'white');
});
3) if that won't work, you're doomed :-) consider this:
this wont hide the yellow color, but will make the text read...
How to generate keyboard events in Python?
... : 0x28,
';' : 0x29,
'\\' : 0x2A,
',' : 0x2B,
'/' : 0x2C,
'n' : 0x2D,
'm' : 0x2E,
'.' : 0x2F,
'`' : 0x32,
'k.' : 0x4...
append new row to old csv file python
I am trying to add a new row to my old csv file. Basically, it gets updated each time I run the Python script.
7 Answers
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How do I prevent 'git diff' from using a pager?
...onal paging based on the amount of content:
git config --global --replace-all core.pager "less -F -X"
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How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
...pen() . I need to get a file descriptor from it, to make calls like fsync(fd) on it. What's the function to get a file descriptor from a file pointer?
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Check whether or not the current thread is the main thread
..., 0x00000001083515a0 MyApp`MyApp.ViewController.sliderMoved (sender=0x00007fd221486340, self=0x00007fd22161c1a0)(ObjectiveC.UISlider) -> () + 112 at ViewController.swift:20, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
If the value for queue is com.apple.main-thread, then you'r...