Reduce import scopes, remove cycles.

1 files changed, 2 insertions, 4 deletions

diff --git a/histogram.py b/histogram.py
index ca67839..b98e848 100644
--- a/histogram.py
+++ b/histogram.py
@@ -4,10 +4,6 @@ import math
 from numbers import Number
 from typing import Generic, Iterable, List, Optional, Tuple, TypeVar
 
-from math_utils import RunningMedian
-from text_utils import bar_graph
-
-
 T = TypeVar("T", bound=Number)
 
 
@@ -18,6 +14,7 @@ class SimpleHistogram(Generic[T]):
     NEGATIVE_INFINITY = -math.inf
 
     def __init__(self, buckets: List[Tuple[T, T]]):
+        from math_utils import RunningMedian
         self.buckets = {}
         for start_end in buckets:
             if self._get_bucket(start_end[0]) is not None:
@@ -70,6 +67,7 @@ class SimpleHistogram(Generic[T]):
         return all_true
 
     def __repr__(self) -> str:
+        from text_utils import bar_graph
         max_population: Optional[int] = None
         for bucket in self.buckets:
             pop = self.buckets[bucket]