p = r"E:\GitHub\blog\write-go\cmd\writeserver\main.go"
with open(p, "r", encoding="utf-8") as f:
    c = f.read()

c = c.replace("var log = logutil.Logger", "var lg = logutil.Logger")
c = c.replace("log.Info(", "lg.Info(")
c = c.replace("log.Error(", "lg.Error(")

with open(p, "w", encoding="utf-8", newline="\n") as f:
    f.write(c)
print("Fixed log variable")