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Sort a text file by line length including spaces
...tching length - what to do in the case of a tie:
The question did not specify whether or not further sorting was wanted for lines of matching length. I've assumed that this is unwanted and suggested the use of -s (--stable) to prevent such lines being sorted against each other, and keep them in th...
Class method decorator with self arguments?
...an pass in the attribute name as a string to the decorator and use getattr if you don't want to hardcode the attribute name:
def check_authorization(attribute):
def _check_authorization(f):
def wrapper(self, *args):
print getattr(self, attribute)
return f(self, *...
Merge / convert multiple PDF files into one PDF
...no other pdf exists in that directory and their order is preserved by "*". If its not preserved, using ranges: filename_{0..9}.pdf solves it.
– lepe
Jan 5 '15 at 5:48
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How does python numpy.where() work?
..., True, True]], dtype=bool)
This is the same reason why something like if x > 5: raises a ValueError if x is a numpy array. It's an array of True/False values, not a single value.
Furthermore, numpy arrays can be indexed by boolean arrays. E.g. x[x>5] yields [6 7 8], in this case.
Hones...
Count how many records are in a CSV Python?
...akes for an efficient counter, avoiding storing the whole file in memory.
If you already read 2 rows to start with, then you need to add those 2 rows to your total; rows that have already been read are not being counted.
sh...
How do I run git log to see changes only for a specific branch?
...ve the branch checked out):
git cherry -v master
or
git log master..
If you are not in the branch, then you can add the branch name to the "git log" command, like this:
git log master..branchname
If your branch was made off of origin/master, then say origin/master instead of master.
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'Incomplete final line' warning when trying to read a .csv file into R
...incomplete final line" is a warning (not an error) that can pop up due to different causes. In your case that's the lack of a final EOL. There's no way that in your case the warning was thrown by the function readTableHeader, because that one doesn't read the final line. Hence your problem is not th...
JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instanti
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If you don't want to add default constructor (e.g., when you are dealing with immutable objects). You will have to tell which constructor or factory method to use to instantiate the object using JsonCreator annotation.
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Convert a list of characters into a string
If I have a list of chars:
9 Answers
9
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How to view the list of compile errors in IntelliJ?
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Apparently this "problems" toolbar is only available if you select the "auto compile" mode. see here: jetbrains.com/help/idea/2016.2/problems-tool-window.html
– atom88
Nov 18 '16 at 21:17
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