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In Python, how do I convert all of the items in a list to floats?
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map(float, mylist) should do it.
(In Python 3, map ceases to return a list object, so if you want a new list and not just something to iterate over, you either need list(map(float, mylist) - or use SilentGhost's answer which arguably is more pythonic.)
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How to take the first N items from a generator or list in Python? [duplicate]
... # grab the first five elements
You can't slice a generator directly in Python. itertools.islice() will wrap an object in a new slicing generator using the syntax itertools.islice(generator, start, stop, step)
Remember, slicing a generator will exhaust it partially. If you want to keep the entire...
what is the right way to treat Python argparse.Namespace() as a dictionary?
...n over-broad admonition. The docs were subsequently corrected. See docs.python.org/2.7/library/functions.html#vars While there are some special cases that have read-only dictionaries (such as locals and class dictionary proxies), the rest of the cases are updateable. The vars(obj) call is synon...
Calculating arithmetic mean (one type of average) in Python
Is there a built-in or standard library method in Python to calculate the arithmetic mean (one type of average) of a list of numbers?
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Concatenating string and integer in python
In python say you have
7 Answers
7
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Importing files from different folder
... modifying the search path.
By default, you can't. When importing a file, Python only searches the directory that the entry-point script is running from and sys.path which includes locations such as the package installation directory (it's actually a little more complex than this, but this covers m...
How to call an external command?
...if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
62 Answers
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How to configure logging to syslog in Python?
I can't get my head around Python's logging module. My needs are very simple: I just want to log everything to syslog. After reading documentation I came up with this simple test script:
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How to convert an integer to a string in any base?
Python allows easy creation of an integer from a string of a given base via
27 Answers
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How can I time a code segment for testing performance with Pythons timeit?
I've a python script which works just as it should, but I need to write the execution time. I've googled that I should use timeit but I can't seem to get it to work.
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