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Plot two histograms on single chart with matplotlib
I created a histogram plot using data from a file and no problem. Now I wanted to superpose data from another file in the same histogram, so I do something like this
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Chain-calling parent initialisers in python [duplicate]
Consider this - a base class A, class B inheriting from A, class C inheriting from B. What is a generic way to call a parent class initialiser in an initialiser? If this still sounds too vague, here's some code.
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SVN checkout ignore folder
...'t directly ignore folders on a checkout, but you can use sparse checkouts in svn 1.5. For example:
$ svn co http://subversion/project/trunk my_checkout --depth immediates
This will check files and directories from your project trunk into 'my_checkout', but not recurse into those directories. E...
Can javax.persistence.Query.getResultList() return null?
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You are right. JPA specification says nothing about it. But Java Persistence with Hibernate book, 2nd edition, says:
If the query result is empty, a null is returned
Hibernate JPA implementation (Entity Manager) return null when you call query.getResultList() w...
What is the default height of UITableViewCell?
I thought this information would have been easier to find :-)
8 Answers
8
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How to disable margin-collapsing?
Is there a way to disable margin-collapsing altogether? The only solutions I've found (by the name of "uncollapsing") entail using a 1px border or 1px padding. I find this unacceptable: the extraneous pixel complicates calculations for no good reason. Is there a more reasonable way to disable thi...
How to “crop” a rectangular image into a square with CSS?
...s impossible to actually modify an image with CSS, which is why I put crop in quotes.
10 Answers
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How to get POSTed JSON in Flask?
I'm trying to build a simple API using Flask, in which I now want to read some POSTed JSON. I do the POST with the Postman Chrome extension, and the JSON I POST is simply {"text":"lalala"} . I try to read the JSON using the following method:
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What is the C++ function to raise a number to a power?
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pow() in the cmath library. More info here.
Don't forget to put #include<cmath> at the top of the file.
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How can I format a decimal to always show 2 decimal places?
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I suppose you're probably using the Decimal() objects from the decimal module? (If you need exactly two digits of precision beyond the decimal point with arbitrarily large numbers, you definitely should be, and that's what your question's title suggests...