大约有 6,261 项符合查询结果（耗时：0.0215秒） [XML]
Parse a .py file, read the AST, modify it, then write back the modified source code
...at would enable you do do so.
eg.
import ast
import codegen
expr="""
def foo():
print("hello world")
"""
p=ast.parse(expr)
p.body[0].body = [ ast.parse("return 42").body[0] ] # Replace function body with "return 42"
print(codegen.to_source(p))
This will print:
def foo():
return 42
No...
Determine the type of an object?
...bbler, That may be, though I haven't yet ran into the situation where type(foo) is SomeType would be better than isinstance(foo, SomeType).
– Mike Graham
Feb 9 '10 at 16:45
5
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How to get the current working directory in Java?
... your application, so could be something like e.g. /Users/george/workspace/FooBarProject).
– David
Sep 20 '13 at 10:19
1
...
Why do we declare Loggers static final?
...
as opposed to:
private static final Logger log = LoggerFactory.getLogger(Foo.class);
The former way allows you to use the same logger name (name of the actual class) in all classes throughout the inheritance hierarchy. So if Bar extends Foo, both will log to Bar logger. Some find it more intuiti...
Manipulate a url string by adding GET parameters
...
$data = array('foo'=>'bar',
'baz'=>'boom',
'cow'=>'milk',
'php'=>'hypertext processor');
$queryString = http_build_query($data);
//$queryString = foo=bar&baz=boom&cow=milk&...
“NODE_ENV” is not recognized as an internal or external command, operable command or batch file
... run something like this (which works in Linux)
NODE_ENV=development node foo.js
the equivalent in Windows would be
SET NODE_ENV=development
node foo.js
running in the same command shell. You mentioned set NODE_ENV did not work, but wasn't clear how/when you executed it.
...
How do I know the script file name in a Bash script?
...ink "$0" || echo "$0")")"
IMO, that'll produce confusing output. "I ran foo.sh, but it's saying I'm running bar.sh!? Must be a bug!" Besides, one of the purposes of having differently-named symlinks is to provide different functionality based on the name it's called as (think gzip and gunzip o...
Do I cast the result of malloc?
...ints are also trivial, if you use the variable in your malloc call: char **foo = malloc(3*sizeof(*foo)); if quite full-proof: 3 pointers to char pointers. then loop, and do foo[i] = calloc(101, sizeof(*(foo[i])));. Allocate array of 101 chars, neatly initialized to zeroes. No cast needed. change the...
AngularJS with Django - Conflicting template tags
... any way to also update the $interpolateProvider for raw output? e.g. {{{foo}}} becoming {{[{foo}]}} ?
– tester
Aug 26 '13 at 7:05
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show ...
Why is printing to stdout so slow? Can it be sped up?
...y own amusing experiment, and here are the results.
$ python test.py 2>foo
...
$ cat foo
-----
timing summary (100k lines each)
-----
print : 6.040 s
write to file : 0.122 s
print with stdout = /dev/null : 0.121 s
$ python test.py 2>foo |cat
...
$ cat ...