if os.path.exists(filename): print("File already exists. Returning path.") return os.path.abspath(filename)
A simple and convenient way to access the popular "Probability, Queueing Theory and Teletraffic" (PQT) book by Balaji in PDF format.
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import os
print("Downloading file...") # implement download logic here return os.path.abspath(filename) pqt balaji book pdf
def download_pqt_balaji_book(): url = "https://example.com/pqt_balaji_book.pdf" filename = "pqt_balaji_book.pdf"