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“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
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That fixed my issue on Ubuntu 12.04 (x64) and Python3.4 installed
– Ilia Shakitko
Dec 17 '14 at 11:13
23
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SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...置SVG图像的显示高度，单位为像素。
可见
设置SVG图像是否可见，true为显示，false为隐藏。
方法
从网络加载(URL地址)
从网络URL加载SVG文件。(版本2中新增)
从字符串加载(SVG字符串)
从SVG字符串数据...
TypeError: Missing 1 required positional argument: 'self'
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64
You need to initialize it first:
p = Pump().getPumps()
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Compiling simple Hello World program on OS X via command line
... ld: can't link with a main executable file './a.out' for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
– Eddified
Jan 31 '14 at 6:32
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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
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Here's a crash on x86-64 on rather innocent-looking code...
– Antti Haapala
Oct 17 '17 at 13:48
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RichTextBox (WPF) does not have string property “Text”
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64
There was a confusion between RichTextBox in System.Windows.Forms and in System.Windows.Control...
count the frequency that a value occurs in a dataframe column
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In [38]:
df['a'].value_counts()
Out[38]:
b 3
a 2
s 2
dtype: int64
If you wanted to add frequency back to the original dataframe use transform to return an aligned index:
In [41]:
df['freq'] = df.groupby('a')['a'].transform('count')
df
Out[41]:
a freq
0 a 2
1 b 3
2 s 2...
Are Exceptions in C++ really slow
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The main model used today for exceptions (Itanium ABI, VC++ 64 bits) is the Zero-Cost model exceptions.
The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side table that maps any p...
Response Content type as CSV
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64
Use text/csv as the content type.
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Add line break within tooltips
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64
The 
 combined with the style white-space: pre-line; worked for me.
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