"""
Python File Open

Open a File on the Server

Assume we have the following file, located in the same folder as Python:

demofile.txt

Hello! Welcome to demofile.txt
This file is for testing purposes.
Good Luck!

To open the file, use the built-in open() function.
The open() function returns a file object, which has a read() method for reading the content of the file:
"""

#Example

f = open("demofile.txt", "r")

print(f.read())

"""If the file is located in a different location, you will have to specify the file path, like this:"""

#Example
#Open a file on a different location:

f = open("D:\\file\welcome.txt", "r")

print(f.read())

"""
Read Only Parts of the File

By default the read() method returns the whole text, but you can also specify how many characters you want to return:
"""

#Example
#Return the 5 first characters of the file:

f = open("demofile.txt", "r")

print(f.read(5))

"""
Read Lines

You can return one line by using the readline() method:
"""

#Example
#Read one line of the file:

f = open("demofile.txt", "r")

print(f.readline())

"""By calling readline() two times, you can read the two first lines:"""

#Example
#Read two lines of the file:

f = open("demofile.txt", "r")

print(f.readline())
print(f.readline())

"""By looping through the lines of the file, you can read the whole file, line by line:"""

#Example
#Loop through the file line by line:

f = open("demofile.txt", "r")
for x in f:
  print(x)

"""
Close Files

It is a good practice to always close the file when you are done with it.
"""

#Example
#Close the file when you are finish with it:

f = open("demofile.txt", "r")

print(f.readline())

f.close()

#Note: You should always close your files, in some cases, due to buffering, changes made to a file may not show until you close the file.
