大约有 44,000 项符合查询结果（耗时：0.0638秒） [XML]
How do I override __getattr__ in Python without breaking the default behavior?
...esort i.e. if there are no attributes in the instance that match the name. For instance, if you access foo.bar, then __getattr__ will only be called if foo has no attribute called bar. If the attribute is one you don't want to handle, raise AttributeError:
class Foo(object):
def __getattr__(sel...
Revert a range of commits in git
...gitrevisions documentation, I cannot see how to specify the range I need. For example:
4 Answers
...
Custom li list-style with font-awesome icon
...r pseudo-element. From what I've understood it would allow such a thing. Unfortunately, no browser seems to support it.
What you can do is add some padding to the parent ul and pull the icon into that padding:
ul {
list-style: none;
padding: 0;
}
li {
padding-left: 1.3em;
}
li:bef...
Argparse: Required argument 'y' if 'x' is present
...
Thank you for parser.error method, this is what I was looking for!
– MarSoft
Dec 9 '15 at 21:21
7
...
How to use JavaScript source maps (.map files)?
...
The .map files are for js and css (and now ts too) files that have been minified. They are called SourceMaps. When you minify a file, like the angular.js file, it takes thousands of lines of pretty code and turns it into only a few lines of ugl...
How does Java Garbage Collection work with Circular References?
...objects will be collected. Even though objects may point to each other to form a cycle, they're still garbage if they're cut off from the root.
See the section on unreachable objects in Appendix A: The Truth About Garbage Collection in Java Platform Performance: Strategies and Tactics for the gory...
How to write header row with csv.DictWriter?
...riter(fou, delimiter='\t', fieldnames=dr.fieldnames)
headers = {}
for n in dw.fieldnames:
headers[n] = n
dw.writerow(headers)
for row in dr:
dw.writerow(row)
As @FM mentions in a comment, you can condense header-writing to a one-liner, e.g.:
with open(outfile,'wb'...
Why does ~True result in -2?
...ue is not this is because bool is a subclass of int @ Martijn added this information in his answer.
– Grijesh Chauhan
Feb 19 '14 at 13:35
...
Converting between strings and ArrayBuffers
Is there a commonly accepted technique for efficiently converting JavaScript strings to ArrayBuffers and vice-versa? Specifically, I'd like to be able to write the contents of an ArrayBuffer to localStorage and to read it back.
...
Convert Linq Query Result to Dictionary
...ows to a database using Linq to SQL, but I want to make a "custom check" before adding the rows to know if I must add, replace or ignore the incomming rows.
I'd like to keep the trafic between the client and the DB server as low as possible and minimize the number of queries.
...