Remote content

[dpryan79]

The underlying C functions support accessing remote files (e.g., via http). Enabling this from within python is quite trivial, but the C code seems to break and then kill python. For example, the following works (after tweaking the C code a bit):

bw = pyBigWig.open("https://rawgit.com/dpryan79/pyBigWig/master/test/test.bw")

But if either the URL doesn't exist or the size of the file isn't returned then Kent's libraries will simply kill everything rather than propagating an error (and returning NULL).

The ideal solution would be to just modify kentlib to behave in a friendlier way, but it's unclear if the license allows distributing modified code (and the bigWig format is weird enough that I really don't want to write a new library to support it).

[dpryan79]

This works properly now in the libBigWig branch.