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How to loop through all but the last item of a list?
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324
for x in y[:-1]
If y is a generator, then the above will not work.
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Filter dataframe rows if value in column is in a set list of values [duplicate]
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663
Use the isin method:
rpt[rpt['STK_ID'].isin(stk_list)]
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Jsoup SocketTimeoutException: Read timed out
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138
I think you can do
Jsoup.connect("...").timeout(10 * 1000).get();
which sets timeout to 10s...
How can I convert NSDictionary to NSData and vice versa?
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363
NSDictionary -> NSData:
NSData *myData = [NSKeyedArchiver archivedDataWithRootObject:myDi...
How can I strip the whitespace from Pandas DataFrame headers?
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3 Answers
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List comprehension rebinds names even after scope of comprehension. Is this right?
...omprehensions leak the loop control variable in Python 2 but not in Python 3. Here's Guido van Rossum (creator of Python) explaining the history behind this:
We also made another change in Python
3, to improve equivalence between list
comprehensions and generator
expressions. In Python 2,...
Array initializing in Scala
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143
scala> val arr = Array("Hello","World")
arr: Array[java.lang.String] = Array(Hello, World)
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Python __str__ versus __unicode__
... method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). These behave as expected.
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