Help me modify this .txt into .csv with Python

[Axel_Erfurt]

lines = texte.split('&')

is wrong, your splitter is &&. & is on begin and end only.

in_text = ""
out_text = ""

# open file, read and split
with open("data_groupe_11-12_B.txt", "r") as f:
    in_text = f.read()[1:-1].split("&&")

# for replacements
repl = ["title", "year", "duration", "score", "nbvotes", "revenue", "revenue", "restriction", "desc"]

# set headers
out_text = ";".join(repl).title()
out_text += "\n"

for line in in_text:
    line = line.replace(",", ";")
    
    for ch in repl:
        if ch in line:
            # replacing, (for example title= year= ...)
            line=line.replace(f"{ch}=", "").replace("  ", "").strip()
    
    out_text += f"{line}\n"
        
    
print(out_text)

# save as semicolon seperated text file
with open("result.csv", "w") as f:
    f.write(out_text)