大约有 15,477 项符合查询结果（耗时：0.0239秒） [XML]
setup.py examples?
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READ THIS FIRST https://packaging.python.org/en/latest/current.html
Installation Tool Recommendations
Use pip to install Python packages
from PyPI.
Use virtualenv, or pyvenv to isolate application specific dependencies from a shared Python installation.
U...
With MySQL, how can I generate a column containing the record index in a table?
...ows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO league_girl VALUES (1, 'a', 10);
INSERT INTO league_girl VALUES (2, 'b', 25);
INSERT INTO league_girl VALUES (3, 'c', 75);
INSE...
How can I check that a form field is prefilled correctly using capybara?
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If you specifically want to test for a placeholder, use:
page.should have_field("some_field_name", placeholder: "Some Placeholder")
or:
expect(page).to have_field("some_field_name", placeholder: "Some Placeholder")
If you want to test the user-ent...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...enerated, but it is not used in the changed row.
See demonstration below, tested with Percona Server 5.5.28. The configuration variable innodb_autoinc_lock_mode=1 (the default):
mysql> create table foo (id serial primary key, u int, unique key (u));
mysql> insert into foo (u) values (10);
m...
Export Data from mysql Workbench 6.0
...he begin of this line to comment it out
Save file and restart Workbench.
Tested on Windows 7 x64, MySQL 5.6.27 (MyISAM) & Workbench 6.3.5 x64.
Tested on OSX Yosemite 10.10.4, MySQL 5.5.27 (MyISAM), Workbench 6.3.5 build 201 CE x64.
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Are tuples more efficient than lists in Python?
...u might expect tuples to be slightly faster. However you should definitely test your specific case (if the difference might impact the performance of your program -- remember "premature optimization is the root of all evil").
Python makes this very easy: timeit is your friend.
$ python -m timeit ...
How can I find all of the distinct file extensions in a folder hierarchy?
...file extension. Example: when we run from maindir it will fail for maindir/test.dir/myfile
– Nelson Teixeira
Apr 2 '17 at 5:52
1
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Determine Whether Integer Is Between Two Other Integers?
...ange (or xrange in python2) returns a generator thus you cannot repeatedly test on it.
– yegle
Mar 3 '14 at 16:44
25
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What is pip's equivalent of `npm install package --save-dev`?
... I found and wasn't able to use) it can handle many files and environments(test, dev, production, etc. ). It also has command to upgrade all/any of your dependencies.
installation
pipm install pkg-name
installation as development dependency
pipm install pkg-name --dev
installation as testing d...
Determining 32 vs 64 bit in C++
...if _WIN32 || _WIN64 … #elif __GNUC__ … #else # error "Missing feature-test macro for 32/64-bit on this compiler."?
– Davislor
Nov 29 '15 at 20:24
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