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Save classifier to disk in scikit-learn
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answered May 15 '12 at 1:41
mwvmwv
3,71122 gold badges1616 silver badges99 bronze badges
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
...items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict constructor to the hilt, then one update:
$ python -mtimeit -s'd1...
Copying data from one SQLite database to another
I have 2 SQLite databases with common data but with different purposes and I wanted to avoid reinserting data, so I was wondering if it was possible to copy a whole table from one database to another?
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bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need
... the pageCrawler file I have included the following two lines:
from bs4 import BeautifulSoup
from urllib2 import urlopen
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How to hide elements without having them take space on the page?
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answered May 28 '10 at 11:54
HuusomHuusom
4,79411 gold badge1414 silver badges1515 bronze badges
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In Java, what does NaN mean?
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154
Taken from this page:
"NaN" stands for "not a number". "Nan"
is produced if a floating poi...
Get current time as formatted string in Go?
...he time.Format() method.
t := time.Now()
fmt.Println(t.Format("20060102150405"))
prints out 20110504111515, or at least it did a few minutes ago. (I'm on Eastern Daylight Time.) There are several pre-defined time formats in the constants defined in the time package.
You can use time.Now().UTC() ...
How to convert an int to a hex string?
...you want.
>>> chr(0x65) == '\x65'
True
>>> hex(65)
'0x41'
>>> chr(65) == '\x41'
True
Note that this is quite different from a string containing an integer as hex. If that is what you want, use the hex builtin.
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performing HTTP requests with cURL (using PROXY)
I have this proxy address: 125.119.175.48:8909
16 Answers
16
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How to comment out a block of code in Python [duplicate]
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434
Python does not have such a mechanism. Prepend a # to each line to block comment. For more inf...