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Altering a column: null to not null
...is undesirable for several reasons, so I am looking to update all nulls to 0 and then set these columns to NOT NULL . Aside from changing nulls to 0 , data must be preserved.
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Convert datetime object to a String of date only in Python
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508
You can use strftime to help you format your date.
E.g.,
import datetime
t = datetime.datetim...
Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?
...ack Shapiro
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answered Nov 15 '11 at 2:16
rob mayoffrob mayoff
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I want to exception handle 'list index out of range.'
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answered Aug 10 '12 at 13:17
ThiefMasterThiefMaster
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How does this print “hello world”?
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+150
The number 4946144450195624 fits 64 bits, its binary representation is:
10001100100100111110111111110111101100011000010101000
The ...
Remove useless zero digits from decimals in PHP
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$num + 0 does the trick.
echo 125.00 + 0; // 125
echo '125.00' + 0; // 125
echo 966.70 + 0; // 966.7
Internally, this is equivalent to casting to float with (float)$num or floatval($num) but I find it simpler.
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Pandas DataFrame column to list [duplicate]
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270
You can use the Series.to_list method.
For example:
import pandas as pd
df = pd.DataFrame({'a...
In Python, how do I create a string of n characters in one line of code?
... this with the existing Python library? For instance, I need a string of 10 letters:
6 Answers
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invalid target release: 1.7
...rectory, for example on Microsoft Windows:
"C:\Program Files\Java\jdk1.7.0_40"
or on OS X:
/Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home
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Rails 3 execute custom sql query without a model
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– Leigh McCulloch
Jan 6 '15 at 16:07
github.com/igorkasyanchuk/execute_sql less code is needed plus you can do it in...