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How to convert an array of strings to an array of floats in numpy?
...(float, list_of_strings)) (or equivalently, use a list comprehension). (In Python 3, you'll need to call list on the map return value if you use map, since map returns an iterator now.)
However, if it's already a numpy array of strings, there's a better way. Use astype().
import numpy as np
x = n...
Reading an Excel file in python using pandas
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Here is an updated method with syntax that is more common in python code. It also prevents you from opening the same file multiple times.
import pandas as pd
sheet1, sheet2 = None, None
with pd.ExcelFile("PATH\FileName.xlsx") as reader:
sheet1 = pd.read_excel(reader, sheet_name='...
What are some (concrete) use-cases for metaclasses?
...ling to actually change these values. Maybe David Beazley can.
Anyway, in Python 3, metaclasses also have the __prepare__ method, which lets you evaluate the class body into a mapping other than a dict, thus supporting ordered attributes, overloaded attributes, and other wicked cool stuff:
import ...
Append integer to beginning of list in Python [duplicate]
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It would be nice for python to add a list.push_front(item) function. This will be obvious and less error-prone.
– Kemin Zhou
Sep 18 '16 at 3:21
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Most Pythonic way to provide global configuration variables in config.py? [closed]
...ndless quest in over-complicating simple stuff, I am researching the most 'Pythonic' way to provide global configuration variables inside the typical ' config.py ' found in Python egg packages.
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Peak-finding algorithm for Python/SciPy
... that only works on those particular images. I adapted a MATLAB script to Python and it works decently.
– endolith
Dec 17 '09 at 18:30
1
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Python - abs vs fabs
I noticed that in python there are two similar looking methods for finding the absolute value of a number:
4 Answers
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Split a string by a delimiter in python
...stackoverflow.com%2fquestions%2f3475251%2fsplit-a-string-by-a-delimiter-in-python%23new-answer', 'question_page');
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Convert sqlalchemy row object to python dict
...e function is too long and not suited for some tastes here is a one liner (python 2.7+)
row2dict = lambda r: {c.name: str(getattr(r, c.name)) for c in r.__table__.columns}
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How do I remove a substring from the end of a string in Python?
...ou're probably better of looking into the urlparse library that comes with python.
If you on the other hand you simply want to remove everything after the final '.' in a string then
url.rsplit('.',1)[0]
will work. Or if you want just want everything up to the first '.' then try
url.split...