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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...urns None
return z
and now:
z = merge_two_dicts(x, y)
In Python 3.9.0a4 or greater (final release date approx October 2020): PEP-584, discussed here, was implemented to further simplify this:
z = x | y # NOTE: 3.9+ ONLY
Explanation
Say you have two dictionaries and you want to mer...
Struggling with NSNumberFormatter in Swift for currency
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10 Answers
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Active
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ssh “permissions are too open” error
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Keys need to be only readable by you:
chmod 400 ~/.ssh/id_rsa
If Keys need to be read-writable by you:
chmod 600 ~/.ssh/id_rsa
600 appears to be fine as well (in fact better in most cases, because you don't need to change file permissions later to edit it).
The re...
Pickle incompatibility of numpy arrays between Python 2 and 3
...Lennart RegebroLennart Regebro
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211
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Add new item in existing array in c#.net
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Binding arrow keys in JS/jQuery
...up
break;
case 39: // right
break;
case 40: // down
break;
default: return; // exit this handler for other keys
}
e.preventDefault(); // prevent the default action (scroll / move caret)
};
If you need to support IE8, start the function bod...
Do I need to create indexes on foreign keys on Oracle?
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edited Dec 20 '19 at 12:26
gabor
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ans...
Getting GDB to save a list of breakpoints
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207
As of GDB 7.2 (2011-08-23) you can now use the save breakpoints command.
save breakpoints <...
Update a dataframe in pandas while iterating row by row
...ot shown here.
update
df.set_value() has been deprecated since version 0.21.0
you can use df.at() instead:
for i, row in df.iterrows():
ifor_val = something
if <condition>:
ifor_val = something_else
df.at[i,'ifor'] = ifor_val
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Find the index of a dict within a list, by matching the dict's value
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edited Dec 27 '17 at 23:06
answered Dec 8 '10 at 20:03
to...