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how to release localhost from Error: listen EADDRINUSE
...7
and when i try to run the tester in the command line i get the following error
28 Answers
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Method Resolution Order (MRO) in new-style classes?
... G
Did you get A B D C E F G?
x = A()
x.m()
After a lot of trial an error, I came up with an informal graph theory interpretation of C3 linearization as follows: (Someone please let me know if this is wrong.)
Consider this example:
class I(G):
def m(self):
print("I")
su...
Aren't promises just callbacks?
...end. Let's discover the true benefits: What if you wanted to check for any error in any of the steps? It would be hell to do it with callbacks, but with promises, is a piece of cake:
api().then(function(result){
return api2();
}).then(function(result2){
return api3();
}).then(function(resul...
Create folder with batch but only if it doesn't already exist
...re, or is there as a file, the mkdir command will run, and should cause an error. You might want to check for whether VTS exists as a file as well.
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invalid_grant trying to get oAuth token from google
I keep getting an invalid_grant error on trying to get an oAuth token from Google to connect to their contacts api. All the information is correct and I have tripple checked this so kind of stumped.
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Matplotlib 2 Subplots, 1 Colorbar
...x=1)
fig.subplots_adjust(right=0.8)
cbar_ax = fig.add_axes([0.85, 0.15, 0.05, 0.7])
fig.colorbar(im, cax=cbar_ax)
plt.show()
Note that the color range will be set by the last image plotted (that gave rise to im) even if the range of values is set by vmin and vmax. If another plot has, for exam...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...e that the compile-time application of the conversion will succeed without error.
This line is fascinating. It means that there are implicit conversions which exist, but which are subject to being turned into errors! This is a bizarre rule of C#. To digress a moment, here's an example:
void Q(Exp...
How can I make setuptools install a package that's not on PyPI?
...ll complain with a Could not find a version that satisfies the requirement error and a list of all versions available on PyPI. Note that I'm trying to build my package with sdist, then installing it with pip install http://url/to/my/generated/tar.
– zazabe
Oct ...
Log.INFO vs. Log.DEBUG [closed]
... interesting for Support staff trying to figure out the context of a given error
WARN to FATAL: Problems and Errors depending on level of damage.
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error C2440: “初始化”: 无法从“const int”转换为“int &” - C/C++ - ...
error C2440: “初始化”: 无法从“const int”转换为“int &”error C2440: 初始化: 无法从const int转换为int &转换丢失限定符。#include <iostream> int main() { const int...error C2440: “初始化”: 无法从“const int”转换为“int &”
转换丢失限定...