Modes for reading files

'r' : use for reading

Remember: all data read from a file is read as a string data type, even if you are reading numbers (integers & floats) 44 would be read as "44"

Example Code

readline (reads one line at a time as a string value)

# Example code (reading a file)

print("---- read one line at a time ----")

daysFile = open("days.txt",'r')

dataReadline1 = daysFile.readline() # read line 1

dataReadline2 = daysFile.readline() # read line 2

daysFile.close()

print(dataReadline1)

print(dataReadline2)

# NOTE:

# 

# This command will only read one line into a given variable at a time.

# The computer remembers which line it has read and the next readline will read the next

# until no more lines are available. When the file is closes the computer will start reading

# data from the top of the file again. 

#

# dataReadline = "Monday\n"

#

# The string data will still have \n present. notice that on the print out a extra line 

# has been inserted between printouts due to this \n character.