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How are parameters sent in an HTTP POST request?
... that the content type specifies.
Usually the content type is application/x-www-form-urlencoded, so the request body uses the same format as the query string:
parameter=value&also=another
When you use a file upload in the form, you use the multipart/form-data encoding instead, which has a di...
Mapping over values in a python dictionary
...s() method instead of .items() to save memory. The dict comprehension syntax wasn't introduced until python 2.7.
Note that there is no such method on lists either; you'd have to use a list comprehension or the map() function.
As such, you could use the map() function for processing your dict as we...
How exactly does a generator comprehension work?
...
Do you understand list comprehensions? If so, a generator expression is like a list comprehension, but instead of finding all the items you're interested and packing them into list, it waits, and yields each item out of the expression, one by one.
>>> my_list = [1, 3, 5, 9,...
Detect encoding and make everything UTF-8
I'm reading out lots of texts from various RSS feeds and inserting them into my database.
24 Answers
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Setting variable to NULL after free
...le that says, after freeing any memory, reset the variable to NULL . For example ...
23 Answers
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Most underused data visualization [closed]
...(quote, as.is=TRUE)
stock.data <- transform(stock.data,
week = as.POSIXlt(Date)$yday %/% 7 + 1,
wday = as.POSIXlt(Date)$wday,
year = as.POSIXlt(Date)$year + 1900)
library(ggplot2)
ggplot(stock.data, aes(week, wday, fill = Adj.Close)) +
geom_tile(colour = "white") +
scale_fill_gradien...
Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
I am making some matrix multiplication benchmarking, as previously mentioned in
Why is MATLAB so fast in matrix multiplication?
...
Android screen size HDPI, LDPI, MDPI [duplicate]
...your emulator. 240 is hdpi, 160 is mdpi and below that are usually ldpi.
Extract from Android Developer Guide link above:
320dp: a typical phone screen (240x320 ldpi, 320x480 mdpi, 480x800 hdpi, etc).
480dp: a tweener tablet like the Streak (480x800 mdpi).
600dp: a 7” tablet (600x1024 mdpi)....
What does “hashable” mean in Python?
... if it has hash value now what is hash value. can you give some example
– user1755071
Jan 26 '13 at 9:56
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