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python assert with and without parenthesis
Here are four simple invocations of assert:
5 Answers
5
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Immutable vs Mutable types
..."mut" x?
Well you agree strings are immutable right? But you can do the sam>me m> thing.
s = 'foo'
s += 'bar'
print s # foobar
The value of the variable changes, but it changes by changing what the variable refers to. A mutable type can change that way, and it can also change "in place".
Here is the...
How to change the default collation of a table?
...ult character set and collation of a table including those of existing columns (note the convert to clause):
alter table <som>me m>_table> convert to character set utf8mb4 collate utf8mb4_unicode_ci;
Edited the answer, thanks to the prompting of som>me m> comm>me m>nts:
Should avoid recomm>me m>nding utf8....
Sending a notification from a service in Android
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Both Activity and Service actually extend Context so you can simply use this as your Context within your Service.
NotificationManager notificationManager =
(NotificationManager) getSystemService(Service.NOTIFICATION_SERVICE);
Notification notification = new Notification(/* your noti...
How to read data from a zip file without having to unzip the entire file
Is there anyway in .Net (C#) to extract data from a zip file without decompressing the complete file?
6 Answers
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How to gzip all files in all sub-directories into one compressed file in bash
...ch file individually within a directory structure. However, I need to do som>me m>thing slightly different. I need to produce one big gzip file for all files under a certain directory. I also need to be able to specify the output filenam>me m> for the compressed file (e.g., files.gz) and overwrite the old com...
How do I show an open file in eclipse Package Explorer?
When a file (.java for example) is open in Eclipse, how do I get the Package Explorer to show the file that I am working on?
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Creating a zero-filled pandas data fram>me m>
What is the best way to create a zero-filled pandas data fram>me m> of a given size?
6 Answers
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pandas read_csv and filter columns with usecols
I have a csv file which isn't coming in correctly with pandas.read_csv when I filter the columns with usecols and use multiple indexes.
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Correct use of flush() in JPA/Hibernate
I was gathering information about the flush() m>me m>thod, but I'm not quite clear when to use it and how to use it correctly. From what I read, my understanding is that the contents of the persistence context will be synchronized with the database, i. e. issuing outstanding statem>me m>nts or refreshing enti...