Assignment_Week_3

Introduction-to-Data-Science/Week-3/Animesh Kumar/assignment_5_1_2.txt

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+1. Opens a file for both appending and reading in binary format. The file pointer is at the end of the file if the file exists. The file opens in the append mode. If the file does not exist, it creates a new file for reading and writing.
+2. While reading the file, the data in the file is transfered in an intermediate buffer before it is accessed by python.This buffer parameter signifies the size of the buffer used.

Introduction-to-Data-Science/Week-3/Animesh Kumar/error.py

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+try:
+    print("Hi")
+    a=1/0
+    f= open("text1.txt",'r')
+    print(f.readline())
+    t='s'+1
+except ZeroDivisionError:
+    print("Zero Error")
+except TypeError:
+    print("Type Error")
+except NameError:
+    print("Name Error")

Introduction-to-Data-Science/Week-3/Animesh Kumar/reverse_file.py

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+import os
+f= open("text1.txt",'w+')
+f.write("Hello\nI\nAm playing")
+f.seek(0,0)
+print(f.readlines())
+f.close()                                                                             
+fp= open("text1.txt",'r')
+k= fp.readlines()                                                                     
+fp.close()                                                                            
+k=k[::-1]
+k[0]=k[0]+"\n"
+k[-1]=k[-1][:-1]
+fm= open("text1.txt",'w+')                                                            
+for t in k:                                                                           
+    fm.write(t)                                                                   
+fm.seek(0,0)                                                                          
+print(fm.readlines())                                                                 
+fm.close()