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Creating an empty Pandas DataFrame, then filling it?
...me
import pandas as pd
import numpy as np
todays_date = datetime.datetime.now().date()
index = pd.date_range(todays_date-datetime.timedelta(10), periods=10, freq='D')
columns = ['A','B', 'C']
Note: we could create an empty DataFrame (with NaNs) simply by writing:
df_ = pd.DataFrame(index=index,...
A clean, lightweight alternative to Python's twisted? [closed]
...applications. I wouldn't confuse bloat with comprehensiveness.
It's well known that the Twisted documentation isn't the most user-friendly from first glance, and I believe this turns away an unfortunate number of people. But Twisted is amazing (IMHO) if you put in the time. I did and it proved to ...
Lambda function in list comprehensions
...gnostic discussion this is enough.
So much for the job interview question.
Now, how to make a list of multiplier lambdas, which really multiply by consecutive integers? Well, similarly to the accepted answer, we need to break the direct tie to i by wrapping it in another lambda, which is getting cal...
__lt__ instead of __cmp__
...ot self<other
def __le__(self, other):
return not other<self
Now your class can define just __lt__ and multiply inherit from ComparableMixin (after whatever other bases it needs, if any). A class decorator would be quite similar, just inserting similar functions as attributes of the ne...
jQuery .data() does not work, but .attr() does
...nt .data() calls could do some basic checks() like whether the value empty now or string length changed (matching the cache with current value)
– minhajul
Nov 6 '15 at 2:52
1
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How to open a specific port such as 9090 in Google Compute Engine
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Yes, there is no Networks option now, the updated path is Project -> Networking -> Firewall Rules
– Caio Vertematti
May 11 '17 at 19:21
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How can I format patch with what I stash away
...n branch A you have stashed away some changes, referred as stash@{1}.
you now switch to branch B. you can just do:
$git stash apply stash@{1}
this applies your branch A changes onto branch B.
share
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Shading a kernel density plot between two points.
... in demo(graphics) since before the dawn on time so one comes across every now and then. Same idea for NBER regression shading etc.
– Dirk Eddelbuettel
Aug 16 '10 at 17:19
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What does addChildViewController actually do?
...ldViewControllers relationships. Here are some of the side effects that I know:
Forwarding appearance methods to child view controllers
Forwarding rotation methods
(Possibly) forwarding memory warnings
Avoiding inconsistent VC hierarchies, especially in transitionFromViewController:toViewControlle...
Git repository broken after computer died
My computer went dead and now one of my git repositories is broken. When I try to checkout master it tells me:
15 Answers
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