mdtraj.utils.import ¶

mdtraj.utils.import_(module)¶

Import a module, and issue a nice message to stderr if the module isn’t installed.

Currently, this function will print nice error messages for networkx, tables, netCDF4, and simtk.unit, which are optional MDTraj dependencies.

Parameters:

module : str

The module you’d like to import, as a string

Returns:

module : {module, object}

The module object

Examples

>>> # the following two lines are equivalent. the difference is that the
>>> # second will check for an ImportError and print you a very nice
>>> # user-facing message about what's wrong (where you can install the
>>> # module from, etc) if the import fails
>>> import tables
>>> tables = import_('tables')

mdtraj.utils.import¶

mdtraj.utils.import ¶