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Lock-free multi-threading is for real threading experts
I was reading through an answer that Jon Skeet gave to a question and in it he mentioned this:
6 Answers
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How I can I lazily read multiple JSON values from a file/stream in Python?
I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects.
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Read input from console in Ruby?
....to_i + b.to_i
puts c
Something like that?
Update
Kernel.gets tries to read the params found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
shar...
How do you append to a file in Python?
...ays be at the end of the file (an append). You can open with "a+" to allow reading, seek backwards and read (but all writes will still be at the end of the file!).
Example:
>>> with open('test1','wb') as f:
f.write('test')
>>> with open('test1','ab') as f:
f.write...
SQLite Concurrent Access
Does SQLite3 safely handle concurrent access by multiple processes
reading/writing from the same DB? Are there any platform exceptions to that?
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Any way to select without causing locking in MySQL?
...ck)
and the MYSQL equivalent is
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED ;
SELECT * FROM TABLE_NAME ;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ ;
EDIT
Michael Mior suggested the following (from the comments)
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED ;
SELE...
Nginx reverse proxy causing 504 Gateway Timeout
...:
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_read_timeout 300;
send_timeout 300;
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Read file from line 2 or skip header row
How can I skip the header row and start reading a file from line2?
8 Answers
8
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How to write a multidimensional array to a text file?
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If you want to write it to disk so that it will be easy to read back in as a numpy array, look into numpy.save. Pickling it will work fine, as well, but it's less efficient for large arrays (which yours isn't, so either is perfectly fine).
If you want it to be human readable, look i...
Reading value from console, interactively
...ple server http server with some console extension. I found the snippet to read from command line data.
15 Answers
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