ModuleNotFoundError: No module named 'louvain'

[sheetalgiri]

Getting the following error with the latest version of scanpy:

ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-24-7f6e74b434f4> in <module>
----> 1 sc.tl.louvain(adata, resolution=0.2, key_added='louvain_r0.2', random_state=10)
      2 sc.tl.louvain(adata, resolution=0.1, key_added='louvain_r0.1', random_state=10)

~/xconda/newconda/envs/cpumode/lib/python3.6/site-packages/scanpy/tools/_louvain.py in louvain(adata, resolution, random_state, restrict_to, key_added, adjacency, flavor, directed, use_weights, partition_type, partition_kwargs, neighbors_key, obsp, copy)
    135             weights = None
    136         if flavor == 'vtraag':
--> 137             import louvain
    138             if partition_type is None:
    139                 partition_type = louvain.RBConfigurationVertexPartition

ModuleNotFoundError: No module named 'louvain'

[flying-sheep]

Install it, it’s an optional dependency.