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Sort a list by multiple attributes?
...Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here you can use sort instead of using sorted and then reassigning:
s.sort(key = operator.itemgetter(1, 2))
...
Remove the first character of a string
...
python 2.x
s = ":dfa:sif:e"
print s[1:]
python 3.x
s = ":dfa:sif:e"
print(s[1:])
both prints
dfa:sif:e
share
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impr...
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and t
... treated as the input sequence. If that string is 74 characters long, then Python sees that as 74 separate bind values, each one character long.
>>> len(img)
74
>>> len((img,))
1
If you find it easier to read, you can also use a list literal:
cursor.execute('INSERT INTO images ...
Android - shadow on text?
...
You can do both in code and XML. Only 4 basic things to be set.
shadow color
Shadow Dx - it specifies the X-axis offset of shadow. You can give -/+ values, where -Dx draws a shadow on the left of text and +Dx on the right
shadow Dy - it specifies the ...
Overriding Binding in Guice
...ry Module, with its own RoboGuice module definition in the AndroidManifest.xml file.
The setup looks like this. In the Library Module there are these definitions:
AndroidManifest.xml:
<application android:allowBackup="true">
<activity android:name="com.example.SomeActivity/>
...
Why does csvwriter.writerow() put a comma after each character?
...e that behavior. I get 2016-11-05 13:21:11 without quotes. What version of Python are you using?
– Laurence Gonsalves
Nov 5 '16 at 20:26
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s...
Pure JavaScript Send POST Data Without a Form
... data back from a POST request.
JS (put in static/hello.html to serve via Python):
<html><head><meta charset="utf-8"/></head><body>
Hello.
<script>
var xhr = new XMLHttpRequest();
xhr.open("POST", "/postman", true);
xhr.setRequestHeader('Content-Type', 'applic...
How to estimate how much memory a Pandas' DataFrame will need?
...a to the discussion.
I ran a series of tests on this issue.
By using the python resource package I got the memory usage of my process.
And by writing the csv into a StringIO buffer, I could easily measure the size of it in bytes.
I ran two experiments, each one creating 20 dataframes of increasi...
Django queries - id vs pk
...
id is also a built-in function in Python, I prefer to use pk because of that.
– Thierry Lam
Oct 23 '10 at 14:05
6
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.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
...ost_alias.so
LoadModule watchdog_module modules/mod_watchdog.so
LoadModule xml2enc_module modules/mod_xml2enc.so
Then find
C:\Apache24\bin\ApacheMonitor.exe
and double click on it.
Then in Command Prompt (CMD.exe) type
C:\Apache24\bin\httpd.exe
and press enter. It shows any error remaining....