From a571c89424616a08f8f9be73c22db2daa8b3637d Mon Sep 17 00:00:00 2001
From: rakesh kumar <rakesh@binarynote.com>
Date: Sat, 23 Jan 2021 15:19:43 +0530
Subject: [PATCH] practical file

---
 PracticalFileQuestion/Q12.py                  |   9 ++
 PracticalFileQuestion/Q13.py                  |  11 ++
 PracticalFileQuestion/Q14.py                  |  19 ++++
 PracticalFileQuestion/Q15.py                  |  15 +++
 PracticalFileQuestion/Q16.py                  |  14 +++
 PracticalFileQuestion/Q17.py                  |  15 +++
 PracticalFileQuestion/Q18.py                  |  20 ++++
 PracticalFileQuestion/Q18_pre.py              |  17 +++
 PracticalFileQuestion/Q19_stack.py            |  38 +++++++
 PracticalFileQuestion/Q20_queue.py            |  39 +++++++
 .../Q21_csv_file_handling.py                  |  55 ++++++++++
 PracticalFileQuestion/Q22_binary_file.py      | 102 ++++++++++++++++++
 PracticalFileQuestion/binary.dat              | Bin 0 -> 63 bytes
 PracticalFileQuestion/book.dat                | Bin 0 -> 182 bytes
 PracticalFileQuestion/diary.txt               |   4 +
 PracticalFileQuestion/student.csv             |   4 +
 PracticalFileQuestion/tempCodeRunnerFile.py   |   1 +
 17 files changed, 363 insertions(+)
 create mode 100644 PracticalFileQuestion/Q12.py
 create mode 100644 PracticalFileQuestion/Q13.py
 create mode 100644 PracticalFileQuestion/Q14.py
 create mode 100644 PracticalFileQuestion/Q15.py
 create mode 100644 PracticalFileQuestion/Q16.py
 create mode 100644 PracticalFileQuestion/Q17.py
 create mode 100644 PracticalFileQuestion/Q18.py
 create mode 100644 PracticalFileQuestion/Q18_pre.py
 create mode 100644 PracticalFileQuestion/Q19_stack.py
 create mode 100644 PracticalFileQuestion/Q20_queue.py
 create mode 100644 PracticalFileQuestion/Q21_csv_file_handling.py
 create mode 100644 PracticalFileQuestion/Q22_binary_file.py
 create mode 100644 PracticalFileQuestion/binary.dat
 create mode 100644 PracticalFileQuestion/book.dat
 create mode 100644 PracticalFileQuestion/diary.txt
 create mode 100644 PracticalFileQuestion/student.csv
 create mode 100644 PracticalFileQuestion/tempCodeRunnerFile.py

diff --git a/PracticalFileQuestion/Q12.py b/PracticalFileQuestion/Q12.py
new file mode 100644
index 0000000..8af6611
--- /dev/null
+++ b/PracticalFileQuestion/Q12.py
@@ -0,0 +1,9 @@
+# Write a program in python, to create two number lists a and b .
+# Swap and display all elements of both lists.
+
+list1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20]
+list2= [13,14,15,18,34,45,56,768,89,890,78]
+
+list1, list2 = list2,list1
+print(list1)
+print(list2)
diff --git a/PracticalFileQuestion/Q13.py b/PracticalFileQuestion/Q13.py
new file mode 100644
index 0000000..766ee4e
--- /dev/null
+++ b/PracticalFileQuestion/Q13.py
@@ -0,0 +1,11 @@
+# Write a UDF in python, it will take two arguments list
+# (sequence of elements) and its size . 
+# Replace and display first half elements with second half elements of a list.
+# For example:  list elements are:	1	2	3	4	5
+# Output is:	4	5	3	1	2
+
+list1 = [1,2,3,4,5]
+n = len(list1)
+for i in range(n//2):
+  list1[i],list1[n//2+1+i]= list1[n//2+1+i],list1[i]
+print(list1)
diff --git a/PracticalFileQuestion/Q14.py b/PracticalFileQuestion/Q14.py
new file mode 100644
index 0000000..40bed2e
--- /dev/null
+++ b/PracticalFileQuestion/Q14.py
@@ -0,0 +1,19 @@
+# Write a UDF in python, it will take two arguments list(sequence of elements)
+# and its size.	Function arrange and display elements in ascending order.
+# Using selection sort.
+
+def insertion_sort(list1):
+  n = len(list1)
+  for i in range(1,n):
+    temp = list1[i]
+    j = i-1
+    while j>=0 and temp<list1[j]:
+          list1[j+1]= list1[j]
+          j = j-1
+    list1[j+1]= temp
+  return list1
+
+# function implementation
+list1 = [43,3,1,23,45,45,6,7,8,89,34,78]
+list1 = insertion_sort(list1)
+print(list1)
diff --git a/PracticalFileQuestion/Q15.py b/PracticalFileQuestion/Q15.py
new file mode 100644
index 0000000..4d07c9c
--- /dev/null
+++ b/PracticalFileQuestion/Q15.py
@@ -0,0 +1,15 @@
+# Write a function in PYTHON that counts the number of “Me” or “My” words present in a 
+# text file “DIARY.TXT”. If the “DIARY.TXT” contents are as follows:
+# My first book was Me and My Family. It gave me chance to be Known to the world.
+# The output of the function should be:
+# Count of Me/My in file: 4
+
+def count_me_my():
+  file = open('C:/python/PracticalFileQuestion/diary.txt', 'r')
+  data = file.read().split()
+  count = data.count('Me') +data.count('me') + data.count('My')+data.count('my')
+  file.close()
+  print('Count of me or My :',count)
+  
+#function call
+count_me_my()
\ No newline at end of file
diff --git a/PracticalFileQuestion/Q16.py b/PracticalFileQuestion/Q16.py
new file mode 100644
index 0000000..dee61b9
--- /dev/null
+++ b/PracticalFileQuestion/Q16.py
@@ -0,0 +1,14 @@
+#Write a function in PYTHON to read the contents of a text file “Places.Txt” 
+# and display all those lines on screen which are either starting with ‘P’ or with ‘S’.
+def line_count():
+  file = open('C:/python/PracticalFileQuestion/diary.txt', 'r')
+  count =0
+  for line in file.readlines():
+      if line[0]=='P' or line[0]=='S':
+        count+=1
+        print(line) 
+  file.close()
+  print('Total lines :',count)
+
+#function implementation
+line_count()
diff --git a/PracticalFileQuestion/Q17.py b/PracticalFileQuestion/Q17.py
new file mode 100644
index 0000000..5e1cd27
--- /dev/null
+++ b/PracticalFileQuestion/Q17.py
@@ -0,0 +1,15 @@
+# Write a function EUCount() in PYTHON, which should read each character
+# of a text file IMP.TXT, should count and display the occurrences of 
+# alphabets E and U (including small cases e and u too).
+
+def EUcount():
+  file = open('C:/python/PracticalFileQuestion/diary.txt', 'r')
+  count = 0
+  for x in file.read():
+      if x in 'EeUu':
+        count+=1
+  file.close()
+  print('Total E or U in file :',count)
+
+#function implementation
+EUcount()
\ No newline at end of file
diff --git a/PracticalFileQuestion/Q18.py b/PracticalFileQuestion/Q18.py
new file mode 100644
index 0000000..6b58a32
--- /dev/null
+++ b/PracticalFileQuestion/Q18.py
@@ -0,0 +1,20 @@
+# Write a function in PYTHON to search for a BookNo from a binary file 
+# “BOOK.DAT”, assuming the binary file is containing the records of the
+#  following type: ("BookNo", "Book_name"). 
+# Assume that BookNo is an integer.
+import pickle
+
+tno = int(input('Enter book no to search :'))
+file = open('C:/python/PracticalFileQuestion/book.dat', 'rb')
+found=0
+while True:
+
+    try:
+      data = pickle.load(file)
+      if data['bookno']==tno:
+        found=1
+        print(data)
+    except:
+      break
+file.close()
+print("Book found" if found==1 else "Book Not Found")
diff --git a/PracticalFileQuestion/Q18_pre.py b/PracticalFileQuestion/Q18_pre.py
new file mode 100644
index 0000000..4bb7c35
--- /dev/null
+++ b/PracticalFileQuestion/Q18_pre.py
@@ -0,0 +1,17 @@
+#program to create a binary file having records of book in the format
+# {'bookno','book_name'}
+import pickle
+
+file = open('C:/python/PracticalFileQuestion/book.dat', 'ab')
+book ={}
+while True:
+      no = int(input('Enter book no :'))
+      name = input('Enter book no :')
+      book['bookno'] = no
+      book['book_name'] = name
+      pickle.dump(book,file)
+      choice = input('Add more books(y/n) :').upper()
+      if choice =='N':
+        break
+file.close()
+print('Binary file creation complete.....')
diff --git a/PracticalFileQuestion/Q19_stack.py b/PracticalFileQuestion/Q19_stack.py
new file mode 100644
index 0000000..8237c63
--- /dev/null
+++ b/PracticalFileQuestion/Q19_stack.py
@@ -0,0 +1,38 @@
+# Write a function in Python for PushS(List) and for PopS(List) for performing 
+# Push and Pop operations with a stack of List containing integers.
+
+def push(stack):
+  value = int(input('Enter any integer no :'))
+  stack.append(value)
+
+def pop(stack):
+  if len(stack)<=0:
+    print('\n Stack Underflow')
+  else:
+    print('\nPoped value from stack :',stack.pop())
+
+def display(stack):
+  print('\n\nStack Elements : ')
+  for x in stack:
+    print(x, end=' ')
+
+#implementation of function to show stack
+stack=[]
+while True:
+  print('\n  STACK MENU')
+  print('1. Push')
+  print('2. Pop')
+  print('3. Display ')
+  print('4. Exit')
+  choice = input('Enter your choice :')
+  if choice=='1':
+      push(stack)
+  if choice=='2':
+      pop(stack)
+  if choice=='3':
+      display(stack)
+  if choice=='4':
+      break
+
+
+
diff --git a/PracticalFileQuestion/Q20_queue.py b/PracticalFileQuestion/Q20_queue.py
new file mode 100644
index 0000000..76670bf
--- /dev/null
+++ b/PracticalFileQuestion/Q20_queue.py
@@ -0,0 +1,39 @@
+# Write a function in Python for PushS(List) and for PopS(List) for performing
+# Push and Pop operations with a queue of List containing integers.
+
+
+def insert_element(queue):
+  value = int(input('Enter any integer no :'))
+  queue.append(value)
+
+
+def delete_element(queue):
+  if len(queue) <= 0:
+    print('\n Queue Underflow')
+  else:
+    print('\nDeleted Elment from from Queue :', queue.pop(0))
+
+
+def display(queue):
+  print('\n\nQueue Elements : ')
+  for x in queue:
+    print(x, end=' ')
+
+
+#implementation of function to show queue
+queue = []
+while True:
+  print('\n  QUEUE MENU')
+  print('1. Insert Element')
+  print('2. Delete Element')
+  print('3. Display ')
+  print('4. Exit')
+  choice = input('Enter your choice :')
+  if choice == '1':
+      insert_element(queue)
+  if choice == '2':
+      delete_element(queue)
+  if choice == '3':
+      display(queue)
+  if choice == '4':
+      break
diff --git a/PracticalFileQuestion/Q21_csv_file_handling.py b/PracticalFileQuestion/Q21_csv_file_handling.py
new file mode 100644
index 0000000..2b9cc4c
--- /dev/null
+++ b/PracticalFileQuestion/Q21_csv_file_handling.py
@@ -0,0 +1,55 @@
+# Write a menu-driven program implementing user-defined functions to perform 
+# different functions on a csv file “student” such as:
+# (a)	Write a single record to csv.
+# (b)	Write all the records in one single go onto the csv.
+# (c)	Display the contents of the csv file.
+import csv
+
+def single_record():
+  file = open('C:/python/PracticalFileQuestion/student.csv', 'a')
+  admno = int(input('Enter admno :'))
+  name = input('Enter name :')
+  std = input('Enter standard :')
+  writer = csv.writer(file,lineterminator='\n')
+  writer.writerow([admno,name,std])
+  file.close()
+
+
+def multiple_records():
+  file = open('C:/python/PracticalFileQuestion/student.csv', 'a')
+  data=[]
+  while True:
+    admno = int(input('Enter admno :'))
+    name = input('Enter name :')
+    std = input('Enter standard :')
+    data.append([admno,name,std])
+    choice= input('Add more records(y/n) :').upper()
+    if choice =='N':
+      break
+
+  writer = csv.writer(file, lineterminator='\n')
+  writer.writerows(data)
+  file.close()
+
+def read_csv_file():
+  file = open('C:/python/PracticalFileQuestion/student.csv', 'r')
+  reader = csv.reader(file)
+  for line in reader:
+      print(line)
+  file.close()
+
+while True:
+  print('\n\n CSV File Handling')
+  print('1. Write Single Record')
+  print('2. Write multiple Records')
+  print('3. Read Whole CSV file ')
+  print('4. Close Application')
+  choice=input('Enter your choice :')
+  if choice=='1':
+    single_record()
+  if choice=='2':
+    multiple_records()
+  if choice=='3':
+    read_csv_file()
+  if choice=='4':
+    break
\ No newline at end of file
diff --git a/PracticalFileQuestion/Q22_binary_file.py b/PracticalFileQuestion/Q22_binary_file.py
new file mode 100644
index 0000000..ad61c34
--- /dev/null
+++ b/PracticalFileQuestion/Q22_binary_file.py
@@ -0,0 +1,102 @@
+# Write a menu-driven program to perform all the basic operations using dictionary on student
+#  binary file such as inserting,reading, updating, searching and deleting a record.
+
+import pickle
+import os
+
+
+def insert_record():
+  file = open('C:/python/PracticalFileQuestion/binary.dat', 'ab')
+  admno = int(input('Enter admno :'))
+  name = input('Enter name :')
+  std = input('Enter standard :')
+  student={'admno':admno,'name':name,'std':std}
+  pickle.dump(student,file)
+  file.close()
+  print('Record added successfully........')
+
+
+def read_records():
+  file = open('C:/python/PracticalFileQuestion/binary.dat', 'rb')
+  while True:
+    try:
+      data = pickle.load(file)
+      print(data)
+    except:
+      break
+  file.close()
+
+
+def delete_record():
+  file = open('C:/python/PracticalFileQuestion/binary.dat', 'rb')
+  temp = open('temp.dat', 'wb')
+  tadmno = int(input('Enter admission no to delete :'))
+  while True:
+    try:
+      data = pickle.load(file)
+      if data['admno'] != tadmno:
+        pickle.dump(data, temp)
+    except:
+      break
+  file.close()
+  temp.close()
+  os.remove('C:/python/PracticalFileQuestion/binary.dat')
+  os.rename('temp.dat', 'C:/python/PracticalFileQuestion/binary.dat')
+  print('Record updated......')
+
+
+def update_record():
+  file = open('C:/python/PracticalFileQuestion/binary.dat', 'rb')
+  temp = open('temp.dat','wb')
+  tadmno = int(input('Enter admission no to update :'))
+  while True:
+    try:
+      data = pickle.load(file)
+      if data['admno']==tadmno:
+         data['name'] = input('Enter new name :')
+         data['std'] = input('Enter new standard :')
+      pickle.dump(data,temp)
+    except:
+      break
+  file.close()
+  temp.close()
+  os.remove('C:/python/PracticalFileQuestion/binary.dat')
+  os.rename('temp.dat', 'C:/python/PracticalFileQuestion/binary.dat')
+  print('Record updated......')
+
+
+def search_record():
+  file = open('C:/python/PracticalFileQuestion/binary.dat', 'rb')
+  tadmno = int(input('Enter admno to search :'))
+  found=0
+  while True:
+    try:
+      data = pickle.load(file)
+      if data['admno']==tadmno:
+         found =1
+    except:
+      break
+  file.close()
+  print('Record found ' if found==1 else 'Record not found ')
+
+while True:
+  print('\n\n Binary File Handling')
+  print('1. Insert Record')
+  print('2. Delete Records')
+  print('3. Update Record ')
+  print('4. Search Record ')
+  print('5. Read all Records ')
+  print('6. Close Application')
+  choice = input('Enter your choice :')
+  if choice == '1':
+    insert_record()
+  if choice == '2':
+    delete_record()
+  if choice == '3':
+    update_record()
+  if choice == '4':
+    search_record()
+  if choice== '5':
+    read_records()
+  if choice== '6':
+    break
diff --git a/PracticalFileQuestion/binary.dat b/PracticalFileQuestion/binary.dat
new file mode 100644
index 0000000000000000000000000000000000000000..f85a0cc16018dac3ef5e1cbcf82e27af991cee7a
GIT binary patch
literal 63
zcmZo*t}SHHh+t)4U`R~K&C4%j^k#}+0rK(^b5jc;%%a4y%tGb}W}s+sNlGD01QU>D
KY*NTtss{kX?hUK}

literal 0
HcmV?d00001

diff --git a/PracticalFileQuestion/book.dat b/PracticalFileQuestion/book.dat
new file mode 100644
index 0000000000000000000000000000000000000000..1de514d0a5eb3f1c95394f594ebc3bada5e0312c
GIT binary patch
literal 182
zcmZo*t}SHHh+t!2U`Wc(&(6y)Wb|f?;DmDH^AdAY3z;H#f&84*5{1lSg@VeGjQqSp
z=2E=|ELxc`wDJJ8dZgy$<SPW=)ya&ZQy8ezB`Yy6JzpWQpdcqRIk6-&Kd%^MH2{6h
BGQ<D?

literal 0
HcmV?d00001

diff --git a/PracticalFileQuestion/diary.txt b/PracticalFileQuestion/diary.txt
new file mode 100644
index 0000000..013bfed
--- /dev/null
+++ b/PracticalFileQuestion/diary.txt
@@ -0,0 +1,4 @@
+My first book was Me and My Family. 
+It gave me chance to be Known to the world.
+Passing criteria is not always same
+Same if the line contains p or s
\ No newline at end of file
diff --git a/PracticalFileQuestion/student.csv b/PracticalFileQuestion/student.csv
new file mode 100644
index 0000000..04f615b
--- /dev/null
+++ b/PracticalFileQuestion/student.csv
@@ -0,0 +1,4 @@
+1,rakesh,12
+2,anmol,11
+3,subodh,10
+4,ravi,10
diff --git a/PracticalFileQuestion/tempCodeRunnerFile.py b/PracticalFileQuestion/tempCodeRunnerFile.py
new file mode 100644
index 0000000..da7f696
--- /dev/null
+++ b/PracticalFileQuestion/tempCodeRunnerFile.py
@@ -0,0 +1 @@
+ temp = list1[i]
\ No newline at end of file