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Change column type from string to float in Pandas

...ost) any other type (even if it's not necessarily sensible to do so). Also allows you to convert to categorial types (very useful). infer_objects() - a utility method to convert object columns holding Python objects to a pandas type if possible. convert_dtypes() - convert DataFrame columns to the ...
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Deadly CORS when http://localhost is the origin

...lija's comment is correct, adding these headers to localhost will not magically give you access to all other sites. It's the remote site that needs to be served with these headers. – Rob W Mar 22 '14 at 22:59 ...
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How to make a python, command-line program autocomplete arbitrary things NOT interpreter

...ts, i.e. --help, --verbose and --version. For your purposes, you'll essentially want to customise the values that are put into opts. Do have a look at the example on the linked page, it's all pretty straightforward. share ...
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Iterating through a JSON object

..._raw= raw.readlines() json_object = json.loads(json_raw[0]) you should really just do: json_object = json.load(raw) You shouldn't think of what you get as a "JSON object". What you have is a list. The list contains two dicts. The dicts contain various key/value pairs, all strings. When you do j...
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Can anyone explain python's relative imports?

... Thanks, but this honestly seems really silly. For such a beautiful language, I can't believe the designers would create such a restriction. Isn't there any other way? – carl Dec 16 '09 at 23:48 ...
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What is the syntax rule for having trailing commas in tuple definitions?

... In all cases except the empty tuple the comma is the important thing. Parentheses are only required when required for other syntactic reasons: to distinguish a tuple from a set of function arguments, operator precedence, or to a...
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Counting array elements in Python [duplicate]

... in an array, because contrary to logic array.count(string) does not count all the elements in the array, it just searches for the number of occurrences of string. ...
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How to set Java environment path in Ubuntu

I just installed JDK in Ubuntu with sudo apt-get install openjdk-6-jdk command, after the installation where's the Java bin directory located? And how can I set the environment path for that directory? I have little experience with Ubuntu, can anyone give some advice or suggest any good website ...
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Can I implement an autonomous `self` member type in C++?

...question, not the answer. In many cases in software development (and especially maintenance) it is helpful to avoid redundancies in the code, so that changing something in one place does not require you to change code in another place. That's the whole point of auto and decltype or in this case of s...
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What are allowed characters in cookies?

What are the allowed characters in both cookie name and value? Are they same as URL or some common subset? 13 Answers ...