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Django self-referential foreign key
...s self is always the first positional argument to any instance method of a Python class.
– Brandon
Nov 2 '16 at 12:58
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BeautifulSoup Grab Visible Webpage Text
...ncoding problems, you should try unicode(element) instead if you are using Python 2.
– mknaf
Feb 13 '16 at 15:48
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Magic number in boost::hash_combine
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Because Python's floating point number doesn't have enough precision, the 64-bit golden ratios above are not correct. The actual result should be 0x9e3779b97f4a7c15.
– kennytm
Nov 27 '15 at 15:0...
SublimeText encloses lines in white rectangles
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If you are using Anaconda plugin (for Python development) this is it's linting functionality - it highlights Python syntax errors and PEP8 violations.
You can disable this feature completely or change the color of this outline by adding some custom rules to you...
Difference between map, applymap and apply methods in Pandas
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Straight from Wes McKinney's Python for Data Analysis book, pg. 132 (I highly recommended this book):
Another frequent operation is applying a function on 1D arrays to each column or row. DataFrame’s apply method does exactly this:
In [116]: fram...
Why are empty catch blocks a bad idea? [closed]
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There are rare instances where it can be justified. In Python you often see this kind of construction:
try:
result = foo()
except ValueError:
result = None
So it might be OK (depending on your application) to do:
result = bar()
if result == None:
try:
resu...
How to use a wildcard in the classpath to add multiple jars? [duplicate]
... Beware that adding jars and other files (like .class .properties .xml) to the classpath are totally different beasts. The following adds both the jar where the main class is in and some properties file that gets called during execution from the current dir on the cp java -cp .;*;"%JAVA_HOME...
How to copy a directory using Ant
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I used include tags as shown in below code snippet in my build.xml file to copy individul jar files inside a directory.
<target name="devInstall" depends="generateXsl" description="testing">
<copy flatten="true" todir="${test}/WEB-INF/lib" overwrite="${overwrite}">
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figure of imshow() is too small
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I'm new to python too. Here is something that looks like will do what you want to
axes([0.08, 0.08, 0.94-0.08, 0.94-0.08]) #[left, bottom, width, height]
axis('scaled')`
I believe this decides the size of the canvas.
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When would you use a List instead of a Dictionary?
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Further to Phillip Ngan's answer, SOAP or otherwise, you cannot XML serialize objects that implements IDictionary.
Q: Why can't I serialize hashtables?
A: The XmlSerializer cannot process classes implementing the IDictionary interface. This was partly due to schedule constraints and part...