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How can I open multiple files using “with open” in Python?
...ption
If you are interested in the details, here is a generic example in order to explain how ExitStack operates:
from contextlib import ExitStack
class X:
num = 1
def __init__(self):
self.num = X.num
X.num += 1
def __repr__(self):
cls = type(self)
re...
What is Pseudo TTY-Allocation? (SSH and Github)
... could type command.
GitHub only wants to reply to your ssh request, in order to ascertain that the ssh command does work (you have the right public/private keys, and the public one has been registered to your GitHub account)
PuTTy would be an example of a terminal emulator, serial console and n...
Debug vs. Release performance
...olved that slows down the program. For this particular code, it was on the order of 0.2-0.3 seconds runtime on its own, and 30+ seconds when the debugger was attached.
Simple solution though, just remove the debug messages that was no longer needed.
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Drop multiple tables in one shot in mysql
...ks = 1;
Then you do not have to worry about dropping them in the correct order, nor whether they actually exist.
N.B. this is for MySQL only (as in the question). Other databases likely have different methods for doing this.
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Passing route control with optional parameter after root in express?
...ext() inside the callback.
According to this, handlers are invoked in the order that they are added, so as long as your next route is app.get('/', ...) it will be called if there is no key.
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Git on Windows: How do you set up a mergetool?
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Do you know if there is a difference with the order where each section is added. I mean, if [merge] would be after [mergetool]?
– Samuel
Oct 11 '17 at 21:11
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How to execute a raw update sql with dynamic binding in rails
...getting composite_primary_keys to function with activerecord 2.3.8. So in order to access the sqlserver 2000 table with a composite primary key, raw sql was required.
sql = "update [db].[dbo].[#{Contacts.table_name}] " +
"set [COLUMN] = 0 " +
"where [CLIENT_ID] = '#{contact.CLIENT_ID}'...
Missing return statement in a non-void method compiles
...eption();
}
That's a non-void method. It has to be a non-void method in order to satisfy the interface. But it seems silly to make this implementation illegal because it does not return anything.
That your method has an unreachable end point because of a goto (remember, a while(true) is just a ...
Gmail Error :The SMTP server requires a secure connection or the client was not authenticated. The s
...answers above are also required, but in my case, it was a simple matter of ordering of the code while creating the SmtpClient class.
In this first code snippet below, notice where the Credentials = creds line is located. This implementation will generate the error referenced in this question even i...
How do you move a file?
...orge SVN repository. I'd like to move a file from one folder to another in order to maintain its revision history. Is this possible? If so, how do you do it?
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