class and global variables.We can further modify the read by using classes and global variables in python.
import sys
import os
import string
class readfile:
def file_read(self, file):
self.file_to_read = file
self.rfile = self.file_to_read.read()
print self.rfile
return
if len(sys.argv) == 1:
r1 = readfile()
r1.file_read(sys.stdin)
else:
r1 = readfile()
r1.file_read(open(sys.argv[1], 'r'))
Open and read file from within the python program as a single string. Command line arguments lists as string with ‘sys.argv’.
Use of glob module in Python code . Read file using classes, global variables and functions. Program to open and write file.
Specify files to be written from the command
line. File writes using classes and global variables
Steps for conditional statements, converting
string to hexadecimalvalue, strip of white space
at end ,converting 12 bit hexadecimal values to
Advanced program to read file, filter text, conversion to HEX, conversion from Hexadecimal to Signed Magnitude
Advanced python code to cover UNIX shell commands, read lines from a text file, ‘sysargv’ command line operations, use of class and multiple functions.
Write a program to generate diamond pattern.
Python error’s with complete code examples:-
TypeError: __init__() takes exactly 2 arguments (1 given),
TypeError: 'str' object is not callable, TypeError: not all arguments converted during string formatting,
AttributeError: ** instance has no attribute **
Implement Python function calls to different classes.
Python read binary files, use of struct.unpack.
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