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How can I use if/else in a dictionary comprehension?

... | edited Mar 22 at 16:40 Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges ...
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Are table names in MySQL case sensitive?

...ames (in the my.cnf configuration file under [mysqld]). Read the section: 10.2.2 Identifier Case Sensitivity for more information. share | improve this answer | follow ...
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Unpacking, extended unpacking and nested extended unpacking

... 115 My apologies for the length of this post, but I decided to opt for completeness. Once you kno...
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arrayfun can be significantly slower than an explicit loop in matlab. Why?

... 101 You can get the idea by running other versions of your code. Consider explicitly writing out t...
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What is ?= in Makefile

... 130 ?= indicates to set the KDIR variable only if it's not set/doesn't have a value. For example:...
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Updating MySQL primary key

...update the primary key. alter table xx drop primary key, add primary key(k1, k2, k3); To fix things: create table fixit (user_2, user_1, type, timestamp, n, primary key( user_2, user_1, type) ); lock table fixit write, user_interactions u write, user_interactions write; insert into fixit selec...
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Global and local variables in R

... 158 Variables declared inside a function are local to that function. For instance: foo <- func...
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Git clone without .git directory

... Use git clone --depth=1 --branch=master git://someserver/somerepo dirformynewrepo rm -rf ./dirformynewrepo/.git The depth option will make sure to copy the least bit of history possible to get that repo. The branch option is optional and if not...
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What is the _snowman param in Ruby on Rails 3 forms for?

...e is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up. 2 Answers ...
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XPath: select text node

... 187 Having the following XML: <node>Text1<subnode/>text2</node> How d...