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How do I parse XML in Python?
... the API, which ElementTree defines.
First build an Element instance root from the XML, e.g. with the XML function, or by parsing a file with something like:
import xml.etree.ElementTree as ET
root = ET.parse('thefile.xml').getroot()
Or any of the many other ways shown at ElementTree. Then do so...
svn : how to create a branch from certain revision of trunk
The following action will only create a branch from the head revision of the trunk. How do I create a branch from a specific revision? Thanks.
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How to do Base64 encoding in node.js?
...doing base64 encoding of the result. For example:
> console.log(Buffer.from("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
Hello World
Buffers are a global object, so no require is needed. Buffers created with ...
How to use a decimal range() step value?
...r is likely to give you a wrong result.
You can use the linspace function from the NumPy library (which isn't part of the standard library but is relatively easy to obtain). linspace takes a number of points to return, and also lets you specify whether or not to include the right endpoint:
>>...
How can I get nth element from a list?
...). Neat, huh?
Also, if your code relies on indexing (instead of consuming from the front of the list), lists may in fact not be the proper data structure. For O(1) index-based access there are more efficient alternatives, such as arrays or vectors.
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How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
...xcel column name in C# without using automation getting the value directly from Excel.
55 Answers
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pandas DataFrame: replace nan values with average of columns
... CAUTION: if you want to use this for Machine Learning / Data Science: from a Data Science perspective it is wrong to first replace NA and then split into train and test... You MUST first split into train and test, then replace NA by mean on train and then apply this stateful preprocessing model...
How to get year/month/day from a date object?
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var dateObj = new Date();
var month = dateObj.getUTCMonth() + 1; //months from 1-12
var day = dateObj.getUTCDate();
var year = dateObj.getUTCFullYear();
newdate = year + "/" + month + "/" + day;
or you can set new date and give the above values
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Hour from DateTime? in 24 hours format
... This was the preferred solution for me because I just needed the int from the hour of the day. Much easier then converting to a string just to parse back into a DateTime again.
– Sev
Nov 17 '16 at 22:22
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What is the most pythonic way to check if an object is a number?
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Use Number from the numbers module to test isinstance(n, Number) (available since 2.6).
>>> from numbers import Number
... from decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), co...