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Convert number strings with commas in pandas DataFrame to float
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If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep='\t', thousands=',')
This method is likely to be more efficient than performing the operation as a separate step.
You need to set the lo...
Exiting from python Command Line
... I'm confused about this answer...the question itself says they already know that exit() works, and they want to know why exit without parens does not work. So this answer just repeats part of the question and doesn't actually answer it.
– Ben Lee
Sep...
Run Command Prompt Commands
...wning CMD processes to do simple IO operations is wrong, even if it works. Read through the documentation on the System.IO namespace. There is more than enough functionality in there to do what you need to do without spawning unneeded processes.
– Instance Hunter
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What is attr_accessor in Ruby?
...e # => nil
person.name = "Dennis" # => no method error
Aha, we can read the name, but that doesn't mean we can assign the name. Those are two different methods. The former is called reader and latter is called writer. We didn't create the writer yet so let's do that.
class Person
def name...
How to copy from CSV file to PostgreSQL table with headers in CSV file?
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@Daniel I understood the user's table already existed and had all the columns they needed and that they wanted to simply ADD data.
– G. Cito
Jul 28 '14 at 16:16
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Possible reason for NGINX 499 error codes
... writes that in the log as 499.
Elaboration
Here I will assume that the reader knows as little as I did when I started playing around.
My setup was a reverse proxy, the nginx server, and an application server, the uWSGI server behind it. All requests from the client would go to the nginx server...
Difference between Groovy Binary and Source release?
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If the application provider has already compiled appropriate binary version for your machine type and operating system, then I would say that binary version is better since it requires less work from you to start using it. On the other hand, if you know what ...
What is an Android PendingIntent?
I am a newbie to Android. I read the Android Documentation but I still need some more clarification. Can anyone tell me what exactly a PendingIntent is?
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Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
...g to do this for my production heroku. See the answers on the following thread: flask.pocoo.org/mailinglist/archive/2012/2/22/…
– David
Mar 29 '12 at 22:45
2
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How do you build a Singleton in Dart?
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I don't find it very intuitive reading new Singleton(). You have to read the docs to know that new isn't actually creating a new instance, as it normally would.
Here's another way to do singletons (Basically what Andrew said above).
lib/thing.dart
lib...