大约有 47,000 项符合查询结果（耗时：0.0735秒） [XML]
Passing a list of kwargs?
... another function's kwargs. Consider this code: (newlines don't seem to be allowed in comments) def a(**kw): print(kw), and def b(**kw): a(kw). This code will generate an error because kwargs is actually a dictionary, and will be interpreted as a regular argument of the dict type. Which is why chang...
Upgrade python packages from requirements.txt using pip command
...
I just used this, and this is the best thing since f-strings.
– Pierre.Sassoulas
Jan 9 '19 at 20:33
1
...
Accessing @attribute from SimpleXML
...xmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
share
|
improve ...
NumPy or Pandas: Keeping array type as integer while having a NaN value
...
If performance is not the main issue, you can store strings instead.
df.col = df.col.dropna().apply(lambda x: str(int(x)) )
Then you can mix then with NaN as much as you want. If you really want to have integers, depending on your application, you can use -1, or 0, or 12345...
Enabling ProGuard in Eclipse for Android
... {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
I think I've answered all the questio...
How can I switch my git repository to a particular commit
...
To create a new branch (locally):
With the commit hash (or part of it)
git checkout -b new_branch 6e559cb
or to go back 4 commits from HEAD
git checkout -b new_branch HEAD~4
Once your new branch is created (locally), you might want to replicate...
How to run Rake tasks from within Rake tasks?
...
@kch, can you string these together (like on the commandline rake db:reset db:migrate for example). Can you do something like: Rake::Task["db:reset", "db:migrate"].invoke
– Jeff
Mar 25 '15 at 15:51
...
Find an element in DOM based on an attribute value
...seems that value can not be a number or SyntaxError: An invalid or illegal string was specified
– jeum
Apr 21 '15 at 15:16
...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
... https://developers.google.com/youtube/js_api_reference
* @param String frame_id The id of (the div containing) the frame
* @param String func Desired function to call, eg. "playVideo"
* (Function) Function to call when the player is ready.
* @param Array args (opti...
Add line break to ::after or ::before pseudo-element content
...in the generated content by writing the "\A" escape sequence in one of the strings after the 'content' property. This inserted line break is still subject to the 'white-space' property. See "Strings" and "Characters and case" for more information on the "\A" escape sequence.
So you can use:
#head...