[Python] Matplotlib Not Able to Make Histogram

For a homework assignment, I have to write a function that calculates the SHA-256 hash code of each unique line of a text file and convert the hex digests of those hash codes to integers. I managed to get that far with the code but there's an extra credit clause that I would wanna meet and I am unsure of how to implement:

Plot a histogram of those integer values with 20 bins
​

import matplotlib.pyplot as plt
import hashlib

def file_processing_function(file_path):

unique_lines = set()

with open (file_path, 'r') as f:
for line in f:
unique_lines.add(line.rstrip())
return unique_lines

def sha256_calc(line):

m = hashlib.sha256(line.encode('utf-8'))
return m.hexdigest()

def sha256_to_int(hex_digest):

return int(hex_digest, 16)

def file_processing(file_path):

unique_lines = file_processing_function(file_path)

results = []
for line in unique_lines:
hex_digest = sha256_calc(line)
integer_value = sha256_to_int(hex_digest)
results.append((line, hex_digest, integer_value))

return results

def printer(results):
for line, hex_digest, integer_value in results:
print(f'Line: {line} \n SHA-256: {hex_digest} \n Int:{integer_value}\n')

def plot_histogram(results, bins = 20):

integer_values = [int(integer_value) for _, _, integer_value in results if isinstance(integer_value, int)]

plt.figure(figsize=(10, 6))
plt.hist(integer_values, bins = bins, color = 'purple', edgecolor = 'black')
plt.title(f'Histogram Based on SHA-256 of {file_path}')
plt.xlabel('Integer Values')
plt.ylabel('Frequency')
plt.grid(axis='y', linestyle='--', linewidth=0.7, alpha=0.7)
plt.show()

file_path= 'wordcount.txt'
results = file_processing(file_path)
printer(results)
plot_histogram(results, bins = 20)


This is what I have thus far but the code is bringing back a TypeError

Traceback (most recent call last):
File "c:\Users\serle\OneDrive\Desktop\Pyprojects\Hash Reader\Hash Reader Sha-256.py", line 53, in <module>
plot_histogram(results, bins = 20)
File "c:\Users\serle\OneDrive\Desktop\Pyprojects\Hash Reader\Hash Reader Sha-256.py", line 43, in plot_histogram
plt.hist(integer_values, bins = bins, color = 'purple', edgecolor = 'black')
File "C:\Users\serle\AppData\Local\Programs\Python\Python312\Lib\site-packages\matplotlib\pyplot.py", line 3440, in hist
return gca().hist(
^^^^^^^^^^^
File "C:\Users\serle\AppData\Local\Programs\Python\Python312\Lib\site-packages\matplotlib\__init__.py", line 1473, in inner
return func(
^^^^^
File "C:\Users\serle\AppData\Local\Programs\Python\Python312\Lib\site-packages\matplotlib\axes\_axes.py", line 7001, in hist
m, bins = np.histogram(x, bins, weights=w, **hist_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\serle\AppData\Local\Programs\Python\Python312\Lib\site-packages\numpy\lib\_histograms_impl.py", line 797, in histogram
bin_edges, uniform_bins = _get_bin_edges(a, bins, range, weights)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\serle\AppData\Local\Programs\Python\Python312\Lib\site-packages\numpy\lib\_histograms_impl.py", line 430, in _get_bin_edges
first_edge, last_edge = _get_outer_edges(a, range)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\serle\AppData\Local\Programs\Python\Python312\Lib\site-packages\numpy\lib\_histograms_impl.py", line 314, in _get_outer_edges
if not (np.isfinite(first_edge) and np.isfinite(last_edge)):
^^^^^^^^^^^^^^^^^^^^^^^
TypeError: ufunc 'isfinite' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''


I'm not very good with Matplotlib, any ideas?

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