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Accessing a Dictionary.Keys Key through a numeric index
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As @Falanwe points out in a comment, doing something like this is incorrect:
int LastCount = mydict.Keys.ElementAt(mydict.Count -1);
You should not depend on the order of keys in a Dictionary. If you need ordering, you should use an OrderedDictionary, as sugg...
Extracting an attribute value with beautifulsoup
...ng only one element). Depending on what you want exactly you either should do:
output = input_tag[0]['value']
or use .find() method which returns only one (first) found element:
input_tag = soup.find(attrs={"name": "stainfo"})
output = input_tag['value']
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Exception 'open failed: EACCES (Permission denied)' on Android
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WARNING In android 4.4.4 do not use the parameter android:maxSdkVersion="18". It was generating this exception
– guisantogui
Aug 26 '14 at 22:39
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grep a file, but show several surrounding lines?
...e following five lines as well as the matched line. How would I be able to do this?
13 Answers
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Getting name of the class from an instance
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NSStringFromClass([instance class]) should do the trick.
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launch sms application with an intent
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okay, do you have an activity with the following attributes in its intent filter in your manifest? <action android:name="android.intent.action.MAIN" /> <category android:name="android.inten...
What does it mean by select 1 from table?
...mediately. Of course, that might be a viscous chicken vs. egg issue, but I don't generally dwell)).
SELECT * FROM TABLE1 T1 WHERE EXISTS (
SELECT 1 FROM TABLE2 T2 WHERE T1.ID= T2.ID
);
Basically, the above will return everything from table 1 which has a corresponding ID from table 2. (This...
How can I rename a field for all documents in MongoDB?
...me:{"name.additional":"name.last"}}, false, true);
Or to just update the docs which contain the property:
db.foo.update({"name.additional": {$exists: true}}, {$rename:{"name.additional":"name.last"}}, false, true);
The false, true in the method above are: { upsert:false, multi:true }. You need ...
AngularJS ng-repeat handle empty list case
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nh-show worked id my case but it doesnt update the state when I put a filter in and nothing returned. Also the object appears on first load and disappears when the repeat process done on page load.
– dvdmn
Jun 13 '13 at...
How to read a text file into a list or an array with Python
..., 'r') as fd:
reader = csv.reader(fd)
for row in reader:
# do something
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