37 lines
749 B
Python
37 lines
749 B
Python
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from os import strerror
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file_name = "lab43.txt"
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letters = {}
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try:
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source = open(file_name, "rt", encoding="utf-8")
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ch = source.read(1)
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while ch != "":
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ch = ch.lower()
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if "a" <= ch <= "z":
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if ch in letters:
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letters[ch] += 1
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else:
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letters[ch] = 1
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ch = source.read(1)
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source.close()
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target = open(file_name + ".hist", "wt", encoding="utf-8")
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for letter, counter in sorted(letters.items(), key=lambda item: item[1], reverse=True):
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target.write(letter + " -> " + str(counter) + "\n")
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target.close()
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print("Istogramma salvato in:", file_name + ".hist")
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except IOError as e:
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print("Errore di I/O:", strerror(e.errno))
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