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Django - filtering on foreign key properties
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3 Answers
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Way to read first few lines for pandas dataframe
...ms to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):
In [1]: import pandas as pd
In [2]: time z = pd.read_csv("P00000001-ALL.csv", nrows=20)
CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s
Wall time: 0.00 s
In [3]: len(z)
Out[3]: 20
In [4]: time z = pd.rea...
How do I draw a grid onto a plot in Python?
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223
You want to use pyplot.grid:
x = numpy.arange(0, 1, 0.05)
y = numpy.power(x, 2)
fig = plt.figu...
Erratic hole type resolution
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answered Jan 2 '18 at 23:21
BillykartBillykart
1911 bronze badge
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PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
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73
I guess that it is because a keyword argument is essentially different than a variable assignmen...
Explanation of JSHint's Bad line breaking before '+' error
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3 Answers
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Active
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Convert unix time to readable date in pandas dataframe
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230
These appear to be seconds since epoch.
In [20]: df = DataFrame(data['values'])
In [21]: df.c...
Xcode 4.5 Storyboard 'Exit'
..." (it's fifth from the top) The discussion of unwind segues starts at time 37:20.
Update:
Here is some more info on the subject from Apple's documentation
A placeholder object named Exit for unwinding seques. By default, when
a user dismisses a child scene, the view controller for that scen...
java: Class.isInstance vs Class.isAssignableFrom
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3
this misses the case where the Foo is the same as clazz - in which case it returns true: Pauls top-voted answer below corrects this
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