Python Pickle Module

Author: OmkarPathak

Programs/P60_PickleModule.py

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+# Author: OMKAR PATHAK
+
+# In this example we will see how to use pickle module for storing the data efficiently!
+# The pickle module translates an in-memory Python object into a serialized byte stream—a string of bytes
+# that can be written to any file-like object.
+
+import pickle
+
+def storeData():
+    # initializing data to be stored in db
+    Omkar = {'key' : 'Omkar', 'name' : 'Omkar Pathak', 'age' : 21, 'pay' : 40000}
+    Jagdish = {'key' : 'Jagdish', 'name' : 'Jagdish Pathak', 'age' : 50, 'pay' : 50000}
+
+    # database
+    db = {}
+    db['Omkar'] = Omkar
+    db['Jagdish'] = Jagdish
+
+    dbfile = open('examplePickle', 'ab')        # Its important to use binary mode
+    pickle.dump(db, dbfile)                     # source, destination
+    dbfile.close()
+
+def loadData():
+    dbfile = open('examplePickle', 'rb')        # for reading also binary mode is important
+    db = pickle.load(dbfile)
+    for keys in db:
+        print(keys,'=>',db[keys])
+    dbfile.close()
+
+if __name__ == '__main__':
+    storeData()
+    loadData()