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Can I use __init__.py to define global variables?
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Pragma in define macro
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How do I calculate square root in Python?
...w_estimate = (estimate + num / estimate) / 2
print(new_estimate)
# Base Case: Comparing our estimate with built-in functions value
if new_estimate == math.sqrt(num):
return True
else:
return newtons_method(num, new_estimate)
For example we need to find 30's square r...
How to perform OR condition in django queryset?
... define and reuse conditions. This permits the construction of complex database queries using | (OR) and & (AND) operators; in particular, it is not otherwise possible to use OR in QuerySets." I did not check documentation for earlier versions but pipe operator works from Django 1.1.4 at least (...
Delete all documents from index/type without deleting type
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I use a solution based on alias for index. The main idea is to create new index each time like news1, news2 and so on and setup an alias for the current active index to the news path. Of course the name of the index is only as example. Here y...
How to get a reference to current module's attributes in Python
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Selecting a row of pandas series/dataframe by integer index
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To index-based access to the pandas table, one can also consider numpy.as_array option to convert the table to Numpy array as
np_df = df.as_matrix()
and then
np_df[i]
would work.
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import module from string variable
... try:
import sys
del sys.modules[moduleName]
except BaseException as err:
pass
try:
import importlib
module = importlib.import_module(moduleName)
except BaseException as err:
serr = str(err)
print("Error to load the module '" + m...
Class method decorator with self arguments?
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Retain cycle on `self` with blocks
...tion, there's no real alternative here. If you're designing your own block-based API, and it makes sense to do so, you could have the block get passed the value of self in as an argument. Unfortunately, this doesn't make sense for most APIs.
Please note that referencing an ivar has the exact same i...