Add plot_freq_bar

.gitignore

@@ -1,3 +1,4 @@
 *.iml
 .idea/
 *.db
+*.png

hexlib/plot.py

@@ -0,0 +1,30 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+DATA = [
+    *["apple"] * 5,
+    *["banana"] * 12,
+    *["strawberry"] * 8,
+    *["pineapple"] * 2,
+]
+
+
+def plot_freq_bar(items, ylabel="frequency", title=""):
+    item_set, item_counts = np.unique(items, return_counts=True)
+
+    plt.bar(item_set, item_counts)
+    plt.xticks(rotation=35)
+    plt.ylabel(ylabel)
+    plt.title(title)
+
+    for i, cnt in enumerate(item_counts):
+        plt.text(x=i, y=cnt / 2, s=cnt, ha="center", color="white")
+
+    plt.tight_layout()
+
+
+if __name__ == '__main__':
+    plot_freq_bar(DATA, title="My title")
+    plt.show()
+
+

setup.py

@@ -2,7 +2,7 @@ from setuptools import setup
 
 setup(
     name="hexlib",
-    version="1.42",
+    version="1.43",
     description="Misc utility methods",
     author="simon987",
     author_email="me@simon987.net",
@@ -13,6 +13,7 @@ setup(
     ]},
     install_requires=[
         "ImageHash", "influxdb", "siphash", "python-dateutil", "redis", "orjson", "zstandard",
-        "u-msgpack-python", "psycopg2-binary", "fake-useragent", "bs4", "lxml", "nltk"
+        "u-msgpack-python", "psycopg2-binary", "fake-useragent", "bs4", "lxml", "nltk", "numpy",
+        "matplotlib"
     ]
 )