Modify init (#301)

* update icefall/__init__.py to import more common functions.

* update icefall/__init__.py

* make imports style consistent.

* exclude black check for icefall/__init__.py in pyproject.toml.

.pre-commit-config.yaml

@@ -4,6 +4,8 @@ repos:
     hooks:
       - id: black
         args: [--line-length=80]
+        additional_dependencies: ['click==8.0.1']
+        exclude: icefall\/__init__\.py
 
   - repo: https://github.com/PyCQA/flake8
     rev: 3.9.2

icefall/__init__.py

@@ -1,3 +1,13 @@
+# isort:skip_file
+
+from . import (
+    checkpoint,
+    decode,
+    dist,
+    env,
+    utils
+)
+
 from .checkpoint import (
     average_checkpoints,
     find_checkpoints,

pyproject.toml

@@ -10,4 +10,5 @@ exclude = '''
   | \.github
 )/
   | make_kn_lm.py
+  | icefall\/__init__\.py
 '''