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The order of keys in dictionaries
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You could use OrderedDict (requires Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b'...
Concatenate multiple files but include filename as section headers
... trick as well:
find . -type f -print -exec cat {} \;
Means:
find = linux `find` command finds filenames, see `man find` for more info
. = in current directory
-type f = only files, not directories
-print = show found file
-exec = additionally execute another linux command
cat = ...
Negation in Python
...xist, but the ! (not) operator doesn't work. I'm not sure how to negate in Python... What's the correct way to do this?
4 A...
Code for Greatest Common Divisor in Python [closed]
...port gcd
>>> gcd(20,8)
4
Source code from the inspect module in Python 2.7:
>>> print inspect.getsource(gcd)
def gcd(a, b):
"""Calculate the Greatest Common Divisor of a and b.
Unless b==0, the result will have the same sign as b (so that when
b is divided by it, th...
retrieve links from web page using python and BeautifulSoup [closed]
...etrieve the links of a webpage and copy the url address of the links using Python?
16 Answers
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Sorting dictionary keys in python [duplicate]
...815423426 you edited my post s/list/my_list/ because "list is a keyword in python". Your edit is fine, but list is not a keyword (c.f. docs.python.org/3/reference/lexical_analysis.html#keywords), so my program fragment would (bytecode-)compile and run. It is however a name in the __builtins__ name...
Initialise a list to a specific length in Python [duplicate]
How do I initialise a list with 10 times a default value in Python?
3 Answers
3
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Colon (:) in Python list index [duplicate]
I'm new to Python. I see : used in list indices especially when it's associated with function calls.
3 Answers
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How do I check if a given Python string is a substring of another one? [duplicate]
... I would like to check whether the first is a substring of the other. Does Python have such a built-in functionality?
3 Ans...
What does a . in an import statement in Python mean?
I'm looking over the code for Python's multiprocessing module, and it contains this line:
2 Answers
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