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How do I write a Python dictionary to a csv file? [duplicate]
...ceptions occur.
Example with these changes made:
import csv
my_dict = {"test": 1, "testing": 2}
with open('mycsvfile.csv', 'wb') as f: # Just use 'w' mode in 3.x
w = csv.DictWriter(f, my_dict.keys())
w.writeheader()
w.writerow(my_dict)
Which produces:
test,testing
1,2
...
How to create user for a db in postgresql? [closed]
...
From CLI:
$ su - postgres
$ psql template1
template1=# CREATE USER tester WITH PASSWORD 'test_password';
template1=# GRANT ALL PRIVILEGES ON DATABASE "test_database" to tester;
template1=# \q
PHP (as tested on localhost, it works as expected):
$connString = 'port=5432 dbname=test_databa...
Testing for empty or nil-value string [duplicate]
I'm trying to set a variable conditionally in Ruby. I need to set it if the variable is nil or empty (0 length string). I've come up with the following:
...
How can I test an AngularJS service from the console?
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@JustGoscha Here is what I did to test. I went to docs.angularjs.org/api in chrome. Opened the console. Typed the code in section a of my answer and then typed the code in section b.. You should see Hello World.. Can you attempt that ?
–...
App Inventor 2 扩展 · App Inventor 2 中文网
...ample component
3.2 Convert your sample component to an extension
3.2.2 Test your extension
3.3 Details on creating extensions
3.3.1 When you start to build
3.3.2 Requesting permissions for the extensions you define
3.2.3 Using external libraries
3.2.4 Choosing a package name for your extens...
In Python, if I return inside a “with” block, will the file still close?
... experiment to show the guarantee you get from the finally keywrod is: def test(): try: return True; finally: return False.
– Ehsan Kia
Jul 11 '14 at 19:57
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Using reCAPTCHA on localhost
...isappear. Further, and equally important, if you're like me and you setup test domains in your local/development environment by placing entries into the operating system's "hosts" file, you will need to add those "fake" domains to the allowed domains for the reCAPTCHA account in question to resolve...
How to encode the filename parameter of Content-Disposition header in HTTP?
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There is discussion of this, including links to browser testing and backwards compatibility, in the proposed RFC 5987, "Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters."
RFC 2183 indicates that such headers should be encoded acco...
Why does comparing strings using either '==' or 'is' sometimes produce a different result?
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is is identity testing, == is equality testing. what happens in your code would be emulated in the interpreter like this:
>>> a = 'pub'
>>> b = ''.join(['p', 'u', 'b'])
>>> a == b
True
>>> a is b
False
...