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What is the most “pythonic” way to iterate over a list in chunks?
...rom the recipes section of Python's itertools docs:
from itertools import zip_longest
def grouper(iterable, n, fillvalue=None):
args = [iter(iterable)] * n
return zip_longest(*args, fillvalue=fillvalue)
Example
In pseudocode to keep the example terse.
grouper('ABCDEFG', 3, 'x') --> '...
Can't install PIL after Mac OS X 10.9
...
If you also want to have a PIL/Pillow with zlib/png/zip support you also need to do: ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/zlib.h /usr/local/include/
– gromgull
...
Java exception not caught?
...own earlier in try-with part.
from same example:
try (
java.util.zip.ZipFile zf = new java.util.zip.ZipFile(zipFileName);
java.io.BufferedWriter writer = java.nio.file.Files.newBufferedWriter(outputFilePath, charset)
) {
for (java.util.Enumeration entries = zf.entries()...
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...入工具mongoexport、mongoimport，Mongodb中的mongoexport工具可以把一个collection导出成JSON格式或CSV格式的文件，可以通过参数指定导出的数据项；mongoimport将相应文件导入到collection中。一、导出工具mongoexport
Mongodb中的mongoexport工具可以...
How can I tell gcc not to inline a function?
...e. I did it for x86 Linux and it did not cause a build problem on PowerPC AIX. Thanks for this useful suggestion!
– Marty
Nov 6 '14 at 23:58
1
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convert_tz returns null
...QL service by searching for "services" in Windows Start button.
5) Then unzip the timezone_2017c_posix.zip and then copy the files in it (copy the files directly, don't copy the whole folder itself), and paste in
C:\ProgramData\MySQL\MySQLServer5.x\Data\mysql\
6) For MySQL 5.7, timezone_2017c_pos...
Failed loading english.pickle with nltk.data.load
...s\punkt\english.pickle (same for D: and E:). So if you make sure the punkt.zip file is unzipped in such a way that one of those locations exist, it should be able to find it.
– richardr
Apr 17 '15 at 21:02
...
append multiple values for one key in a dictionary [duplicate]
...values into a list of tuples. To do this, you can use list slicing and the zip function.
data_in = [2010,2,2009,4,1989,8,2009,7]
data_pairs = zip(data_in[::2],data_in[1::2])
Zip takes an arbitrary number of lists, in this case the even and odd entries of data_in, and puts them together into a tup...
C/C++ maximum stack size of program
...
Tru64 5.1: 5.2 MB
Cygwin: 1.8 MB
Solaris 7..10: 1 MB
MacOS X 10.5: 460 KB
AIX 5: 98 KB
OpenBSD 4.0: 64 KB
HP-UX 11: 16 KB
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How to copy a collection from one database to another in MongoDB
...ollection via:
mongodump -d some_database -c some_collection
[Optionally, zip the dump (zip some_database.zip some_database/* -r) and scp it elsewhere]
Then restore it:
mongorestore -d some_other_db -c some_or_other_collection dump/some_collection.bson
Existing data in some_or_other_collection wil...