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python: how to send mail with TO, CC and BCC?

... But among other things I need to be able to send messages not only TO specific mailboxes, but CC and BCC them as well. It does not look like smtplib supports CC-ing and BCC-ing while sending emails. ...
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Update just one gem with bundler

... Here you can find a good explanation on the difference between Update both gem and dependencies: bundle update gem-name or Update exclusively the gem: bundle update --source gem-name along with some nice examples of possible side-effects. Update As @Tim's ans...
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In Python, when to use a Dictionary, List or Set?

...ct and set don't: when you care about order, therefore, you must use list (if your choice of containers is limited to these three, of course;-). dict associates with each key a value, while list and set just contain values: very different use cases, obviously. set requires items to be hashable, li...
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Dump a mysql database to a plaintext (CSV) backup from the command line

...ysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql script, pointers to how to make such a thing would be helpful. ...
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How can I remove duplicate rows?

...tead of an integer, you can replace MIN(RowId) with CONVERT(uniqueidentifier, MIN(CONVERT(char(36), MyGuidColumn))) share | improve this answer | follow |...
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Replace non-numeric with empty string

... in our DB to hold a phone number is set to only allow 10 characters. So, if I get passed "(913)-444-5555" or anything else, is there a quick way to run a string through some kind of special replace function that I can pass it a set of characters to allow? ...
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How to use SSH to run a local shell script on a remote machine?

... If Machine A is a Windows box, you can use Plink (part of PuTTY) with the -m parameter, and it will execute the local script on the remote server. plink root@MachineB -m local_script.sh If Machine A is a Unix-based system,...
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Convert interface{} to int

... Thanks. it's a beautiful answer. – Muktadir Dec 25 '15 at 22:48 add a comment  |  ...
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cout is not a member of std

... StackExchange.ifUsing("editor", function () { StackExchange.using("externalEditor", function () { StackExchange.using("snippets", function () { StackExchange.snippets.init(); ...
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What is a memory fence?

...nly found in device drivers than application code. The CPU reordering is different from compiler optimisations - although the artefacts can be similar. You need to take separate measures to stop the compiler reordering your instructions if that may cause undesirable behaviour (e.g. use of the volat...