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Changes in import statement python3
...ould do it like this (in derived.py):
from base import BaseThing
Python 3 no longer supports that since it's not explicit whether you want the 'relative' or 'absolute' base. In other words, if there was a Python package named base installed in the system, you'd get the wrong one.
Instead it requ...
Regular Expression for alphanumeric and underscores
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the Tin Man
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answered Dec 3 '08 at 4:33
CharlieCharlie
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Iterating through directories with Python
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3 Answers
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Active
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What is the preferred/idiomatic way to insert into a map?
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edited Nov 26 '10 at 18:37
user229044♦
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Normalize data in pandas
... df
Out[92]:
a b c d
A -0.488816 0.863769 4.325608 -4.721202
B -11.937097 2.993993 -12.916784 -1.086236
C -5.569493 4.672679 -2.168464 -9.315900
D 8.892368 0.932785 4.535396 0.598124
In [93]: df_norm = (df - df.mean()) / (df.max() - df.min())
In [9...
javascript function leading bang ! syntax
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edited Aug 30 '14 at 7:27
answered Apr 29 '11 at 3:08
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How to pip or easy_install tkinter on Windows
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38
Well I can see two solutions here:
1) Follow the Docs-Tkinter install for Python (for Windows)...
App Inventor 2 扩展 · App Inventor 2 中文网
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2.1 Importing extension components
2.2 Some sample extensions to try
2.3 Building projects with extension components
2.4 Deleting extension components
2.5 Sharing projects that use extension components
2.6 Extension component repositories
2.7 Naming extension components
2.8 Updating project...
Why does the is operator return false when given null?
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This question was the subject of my blog on May 30th 2013. Thanks for the great question!
You're staring at an empty driveway.
Someone asks you "can your driveway hold a Honda Civic?"
Yes. Yes it can.
Someone points you at a second driveway. It is also empty. They a...