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Reading a huge .csv file
I'm currently trying to read data from .csv files in Python 2.7 with up to 1 million rows, and 200 columns (files range from 100mb to 1.6gb). I can do this (very slowly) for the files with under 300,000 rows, but once I go above that I get memory errors. My code looks like this:
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Getting “Warning! PATH is not properly set up” when doing rvm use 2.0.0 --default
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16 Answers
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Is there a naming convention for Django apps
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112
They must be valid package names. That rules out 2 ("import my-django-app" would be a syntax e...
Get __name__ of calling function's module in Python
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123
Check out the inspect module:
inspect.stack() will return the stack information.
Inside a fu...
SQLAlchemy: print the actual query
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170
In the vast majority of cases, the "stringification" of a SQLAlchemy statement or query is as ...
How to make a div grow in height while having floats inside
...er div fully wraps around them. See this example:
.wrap {
padding: 1em;
overflow: auto;
background: silver;
}
.float {
float: left;
width: 40%;
background: white;
margin: 0 1%;
}
<div class="wrap">
<div class="float">Cras mattis iudicium purus sit ame...
How do you check whether a number is divisible by another number (Python)?
I need to test whether each number from 1 to 1000 is a multiple of 3 or a multiple of 5. The way I thought I'd do this would be to divide the number by 3, and if the result is an integer then it would be a multiple of 3. Same with 5.
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Spring JPA @Query with LIKE
...Spring documentation, this method is equal to
" where user.username like ?1 ". It is not good for me, as I already told that I'm trying to get all users whose username contains ...
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convert streamed buffers to utf8-string
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edited Jul 19 '16 at 19:20
Sharikov Vladislav
5,88144 gold badges3636 silver badges7171 bronze badges
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Shorthand way for assigning a single field in a record, while copying the rest of the fields?
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157
Yes, there's a nice way of updating record fields. In GHCi you can do --
> data Foo = Foo ...