hulooq

gemini-pro 写的代码：

```python
import os
import PyPDF2

def scan_pdf_files(directory):
"""Scans a directory of PDF files and identifies non-normal PDF files.

Args:
directory: The directory to scan.

Returns:
A list of non-normal PDF files.
"""

non_normal_pdf_files = []

# Iterate over the files in the directory.

for file in os.listdir(directory):

# Check if the file is a PDF file.

if file.endswith(".pdf"):

# Try to open the PDF file.

try:
pdf_file = open(os.path.join(directory, file), "rb")
except:
# The PDF file could not be opened, so it is non-normal.

non_normal_pdf_files.append(file)
continue

# Try to read the PDF file.

try:
pdf_reader = PyPDF2.PdfFileReader(pdf_file)
except:
# The PDF file could not be read, so it is non-normal.

non_normal_pdf_files.append(file)
continue

# Check if the PDF file is encrypted.

if pdf_reader.isEncrypted:
# The PDF file is encrypted, so it is non-normal.

non_normal_pdf_files.append(file)

# Return the list of non-normal PDF files.

return non_normal_pdf_files


if __name__ == "__main__":

# Get the directory to scan from the user.

directory = input("Enter the directory to scan: ")

# Scan the directory for non-normal PDF files.

non_normal_pdf_files = scan_pdf_files(directory)

# Print the list of non-normal PDF files to the console.

print("The following PDF files are non-normal:")

for file in non_normal_pdf_files:
print(file)

```