Import matplotlib in a good place

algods/algods.py

@@ -3,7 +3,6 @@ import unicodedata
 import sys
 from typing import Optional
 
-from matplotlib import pyplot as plt
 import numpy as np
 
 SHINGLE_SIZE = 5  # Known as k
@@ -331,6 +330,8 @@ def graph(stream, display_tqdm: bool = False) -> None:
     """
     Draw statistic graphs about false-positive and true positive rates using matplotlib.
     """
+    from matplotlib import pyplot as plt
+
     docs = [line.rstrip('\n') for line in stream]  # Read stream
     docs = [normalize(doc) for doc in docs]  # Remove special characters and normalize accents