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psycopg2: insert multiple rows with one query
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15 Answers
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Bad value X-UA-Compatible for attribute http-equiv on element meta
...p to date with the current status of that wiki.
At the time of writing (20130326) X-UA-Compatible appears on the wiki page under a section that states: "The following proposed extensions do not yet conform to all the registration requirements in the HTML spec and are therefore not yet allowed in va...
How do you validate a URL with a regular expression in Python?
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Linux bash: Multiple variable assignment
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First thing that comes into my mind:
read -r a b c <<<$(echo 1 2 3) ; echo "$a|$b|$c"
output is, unsurprisingly
1|2|3
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Boolean literals in PowerShell
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174
$true and $false.
Those are constants, though. There are no language-level literals for boole...
Why can't decimal numbers be represented exactly in binary?
... SO about floating-point representation. For example, the decimal number 0.1 doesn't have an exact binary representation, so it's dangerous to use the == operator to compare it to another floating-point number. I understand the principles behind floating-point representation.
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How to initialize a dict with keys from a list and empty value in Python?
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dict.fromkeys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
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How to copy commits from one branch to another?
...ow that lets you do this all by merging:
- x - x - x (v2) - x - x - x (v2.1)
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x - x - x (wss)
So all you have to do is git checkout v2.1 and git merge wss. If for some reason you really can't do this, and you can't use git rebase to move your wss branch to the right place,...
Convert unix time to readable date in pandas dataframe
... to be seconds since epoch.
In [20]: df = DataFrame(data['values'])
In [21]: df.columns = ["date","price"]
In [22]: df
Out[22]:
<class 'pandas.core.frame.DataFrame'>
Int64Index: 358 entries, 0 to 357
Data columns (total 2 columns):
date 358 non-null values
price 358 non-null value...
CodeFile vs CodeBehind
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164
CodeBehind: Needs to be compiled (ASP.NET 1.1 model). The compiled binary is placed in the bin...