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# Import the os and re modules
import os
import re
# Define the directory where the csv files are located
directory = "."
# Define a function to remove invalid characters from a csv file
def remove_invalid_chars(file):
# Open the file in read mode with UTF-8 encoding and ignore errors
with open(file, "r", encoding="utf-8", errors="ignore") as infile:
# Read the file content as a string
content = infile.read()
# Remove any null bytes from the string
content = content.replace("\x00", "")
# Remove any non-printable characters from the string
# content = re.sub(r"[^\x20-\x7E]", "", content)
# Open the file in write mode with UTF-8 encoding
with open(file, "w", encoding="utf-8") as outfile:
# Write the modified content to the file
outfile.write(content)
# Loop through each file in the directory
for file in os.listdir(directory):
# Check if the file is a csv file
if file.endswith(".csv"):
# Remove invalid characters from the csv file and print the result
print(f"Removing invalid characters from {file}...")
remove_invalid_chars(os.path.join(directory, file))
print(f"{file} is cleaned.")
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