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How can I check whether a numpy array is empty or not?
...ting with a 'empty' array, and growing with np.append is a frequent novice error.
Using a list in if alist: hinges on its boolean value:
In [102]: bool([])
Out[102]: False
In [103]: bool([1]) ...
Convert RGBA PNG to RGB with PIL
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This code was causing a error for me: tuple index out of range. I fixed this by following another question(stackoverflow.com/questions/1962795/…). I had to convert the PNG to RGBA first and then slice it: alpha = img.split()[-1] then use that on t...
python assert with and without parenthesis
...foo == 8, \
"derp should be 8, it is " + str(foo)
Prints:
AssertionError: "derp should be 8, it is 7
Why does this python assert have to be different from everything else:
I think the pythonic ideology is that a program should self-correct without having to worry about the special flag to...
What is the easiest way to parse an INI file in Java?
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doesn't work, error says "IniFile cannot be resolved to a type"
– Caballero
May 3 '13 at 15:16
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How to style icon color, size, and shadow of Font Awesome Icons
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Looks like the FontAwesome icon color responds to text-info, text-error, etc.
<div style="font-size: 44px;">
<i class="icon-umbrella icon-large text-error"></i>
</div>
share
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How can I read a large text file line by line using Java?
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Here is a sample with full error handling and supporting charset specification for pre-Java 7. With Java 7 you can use try-with-resources syntax, which makes the code cleaner.
If you just want the default charset you can skip the InputStream and use ...
What does “program to interfaces, not implementations” mean?
One stumbles upon this phrase when reading about design patterns.
7 Answers
7
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How can I force division to be floating point? Division keeps rounding down to 0?
...ommended for Python 2
Commonly seen is a / float(b). This will raise a TypeError if b is a complex number. Since division with complex numbers is defined, it makes sense to me to not have division fail when passed a complex number for the divisor.
>>> 1 / float(2)
0.5
>>> 1 / float...
Detect and exclude outliers in Pandas data frame
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Got error: "TypeError: unsupported operand type(s) for /: 'str' and 'int'"
– sak
Jul 19 '19 at 4:41
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How do I convert an integer to binary in JavaScript?
...ring(2) because the parser sees the dot as decimal separator and throws an error because of a missing dot operator.
– kapex
Dec 12 '18 at 8:47
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