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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...
The echo command by default returns a newline character
Compare with this:
print(subprocess.Popen("echo -n hi", \
shell=True, stdout=subprocess.PIPE).communicate()[0])
As for the b preceding the string it indicates that it is a byte s...
TypeError: ObjectId('') is not JSON serializable
...A Python dict (which json.loads returns) should automatically be jsonified by Flask.
– Garren S
May 12 '15 at 19:22
Is...
Init method in Spring Controller (annotation version)
...ut I belive both work the same.
If you are using @Bean you can reference by initMethod, like this.
@Configuration
public class BeanConfiguration {
@Bean(initMethod="init")
public BeanA beanA() {
return new BeanA();
}
}
public class BeanA {
// method to be initialized after context ...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
...il, null: false
t.string :password, null: false
t.integer :created_by
t.integer :updated_by
t.datetime :created_at
t.datetime :updated_at, default: -> { 'CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP' }
end
end
end
...
How can I install MacVim on OS X?
...w link macvim
You now have the latest versions of vim and macvim managed by brew. Run brew update && brew upgrade every once in a while to upgrade them.
This includes the installation of the CLI mvim and the mac application (which both point to the same thing).
I use this setup and it wo...
Why do we need argc while there is always a null at the end of argv?
...te big, because the shell is doing expansion (so in ls * the * is expanded by the shell before execve of /bin/ls executable). On my system, I can have an argc of several hundred thousands.
– Basile Starynkevitch
Aug 31 '13 at 11:37
...
How to use CMAKE_INSTALL_PREFIX
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Better naming in Tuple classes than “Item1”, “Item2”
...udio 2017) there is a new construction to do that:
(string first, string middle, string last) LookupName(long id)
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Git submodule inside of a submodule (nested submodules)
...init --recursive command, introduced in commit b13fd5c, again in git1.6.5, by Johan Herland (jherland).
And IceFire adds in the comments:
If you would like to checkout only one submodule of a submodule, then
git submodule update --init <submoduleName> is the way to go.
(older origin...
SQL query to get all values a enum can have
.... You might also want to cast the enum to text and specify a column name by adding something like. ::text AS my_column
– Justin Ohms
Aug 29 '13 at 3:25
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