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ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
...sing the below command
set PATH=C:\Program Files\Java\jdk1.8.0_211\bin
now the path is set now you can use the keytool
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...Unicode 9.0 - and with no equivalent _general variant. People reading this now should probably use one of these newer collations instead of either _unicode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead.
Key differences
u...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
... to a generator.
(If we were talking about TCP, yield from g might mean "now temporarily disconnect my client's socket and reconnect it to this other server socket".)
BTW, if you are not sure what sending data to a generator even means, you need to drop everything and read about coroutines first...
How to flush output of print function?
...t line from (something like) #!/usr/bin/python3 to #!/usr/bin/python3 -u - now when you run your script (e.g. ./my_script.py) the -u will always be added for you
– James
Sep 7 at 17:22
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jekyll markdown internal links
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You can now post internal links by using the following:
[Some Link]({% post_url 2010-07-21-name-of-post %})
This is also referenced in the Jekyll Documentation.
https://github.com/mojombo/jekyll/pull/369
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How to implement an abstract class in ruby?
I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like...
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How to wait for several Futures?
...ld a tuple with 3 slots, corresponding to the results of the 3 futures.
Now if you need the behavior where you want to stop waiting if say fut2 fails first, things get a little trickier. In the above example, you would have to wait for fut1 to complete before realizing fut2 failed. To solve tha...
How to send an email with Gmail as provider using Python?
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As of August 2014 this now raises smtplib.SMTPAuthenticationError: (534, '5.7.9 Application-specific password required.
– anon58192932
Aug 27 '14 at 18:06
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Excel: last character/string match in a string
...ink how to apply without lengthy recursive algorithm. And this solution now seems obsolete.
12 Answers
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Building a minimal plugin architecture in Python
...p can poll and then use imp.load_module to pick up files, look for a well-known entry point possibly with module-level config params, and go from there. I use file-monitoring stuff for a certain amount of dynamism in which plugins are active, but that's a nice-to-have.
Of course, any requirement th...