python with file.open
# Reference https://docs.python.org/3/library/functions.html#open
# Method 1
file = open("welcome.txt", "r") # mode can be r(read) w(write) and others
data = file.read()
file.close()
# Method 2 - automatic close
with open("welcome.txt") as infile:
data = file.read()read function in python
Syntax: file.read(fd, n)
Parameter:
fd: A file descriptor representing the file to be read.
n: Optional. An integer value denoting the number of bytes to be read from the file associated with the given file descriptor fd.
The number of bytes to return. Default -1, which means the whole file.
Return Type: This method returns a bytestring which represents the bytes read from the file associated with the file descriptor fd.with open as file python
>>> with open('workfile') as f:
... read_data = f.read()
>>> # We can check that the file has been automatically closed.
>>> f.closed
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