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Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?
...
I would check that the file is not empty first:
import os
scores = {} # scores is an empty dict already
if os.path.getsize(target) > 0:
with open(target, "rb") as f:
unpickler = pickle.Unpickler(f)
# if file is not e...
How to create a MySQL hierarchical recursive query
....id
)
select * from cte;
The value specified in parent_id = 19 should be set to the id of the parent you want to select all the descendants of.
MySQL 5.x
For MySQL versions that do not support Common Table Expressions (up to version 5.7), you would achieve this with the following query:
select ...
With MySQL, how can I generate a column containing the record index in a table?
...:= 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO league_girl VALUES (1, 'a', 10);
INSERT INTO league_girl VALUES (2, 'b', 25);
INSERT INTO league_girl VALUES (3, ...
How do you auto format code in Visual Studio?
...rmat to make my methods and loops indented properly, but I cannot find the setting.
30 Answers
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How can I delete a newline if it is the last character in a file?
...handled in the END block, where it is printed without a trailing \n due to setting the output-record separator (OFS) to an empty string.
If you want a verbose, but fast and robust solution that truly edits in-place (as opposed to creating a temp. file that then replaces the original), consider jroc...
How do I make a dotted/dashed line in Android?
...e found the solution here : stackoverflow.com/questions/10843402/… Just set layer type to software : android:layerType="software"
– Dante
Apr 23 '13 at 11:50
7
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How to find the php.ini file used by the command line?
...guration file, try retrieving the value of the cfg_file_path configuration setting. If this is available, a configuration file is being used.Unlike phpinfo() it will tell if it didn't find/use a php.ini at all.
var_dump( get_cfg_var('cfg_file_path') );
And you can simply set the location of the p...
Remove all breakpoints in IntelliJ IDEA
...top breaking on all of them. They will still exist, so you can toggle this setting again to start breaking on them.
The mute breakpoints button can be found in the Debug view (view can be toggled using View -> Tool Windows -> Debug), in the left-hand side button menu. I attached a screenshot...
Do I need to explicitly call the base virtual destructor?
...ase
derived::derived
base::~base
Press any key to continue . . .
If you set the base class destructor as virtual which one should, then case 3 results would be same as case 1 & 2.
share
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imp...
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
..."i"
}
}
}
}
}
The third argument sets the indentation level, so you can adjust that as desired.
More detail here if needed:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
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