Python Shelve Module скачать в хорошем качестве

Python Shelve Module

Python Shelve Module One drawback of the pickle module is that it is only capable of pickling one object at a time, which has to be unpickled in one go. Let's imagine this data object is a dictionary. It may be desirable that we don't have to save and load every time the whole dictionary, but save and load just a single value corresponding to just one key. The shelve module is the solution to this request. A "shelf" - as used in the shelve module - is a persistent, dictionary-like object. The shelve module can be easily used. Actually, it is as easy as using a dictionary in Python. Before we can use a shelf object, we have to import the module. After this, we have to open a shelve object with the shelve method open. The open method opens a special shelf file for reading and writing. storing data into file (persistent data storage) import shelve s = shelve.open("MyShelve") s["street"] = "Main Road" s["city"] = "New Delhi" for key in s: print(key) s.close() retriving stored data later s = shelve.open("MyShelve") print(s["street"]) print(s["city"]) s.close() ============================================================================= Link for Tutorial Series Jupyter Notebook Tutorial Series:-    • How To Open Jupyter Notebook in Windows   Python Tutorial Series:-    • Introduction to Python | Python Applications   Python Assignments and Objective Questions:-    • Objective Questions Python - 1   Tech. Videos By Parag Dhawan;-    • Template Matching Using OpenCV (Python) | ...   Object-Oriented Programming in Python:-    • How to Create Class and Object in Python   File Handling in Python:-    • How to Create a file in Python | Python Fi...   ============================================================================= Feel free to connect and ask your queries:- Linkedin:-   / parag-dhawan   Youtube:-    / paragdhawan   Facebook Page:- http://fb.me/dhawanparag Instagram: -   / paragdhawan   Twitter:-   / dhawan_parag   GitHub:- https://github.com/paragdhawan/ Facebook Profile:- https://www.facebook.com/profile.php?... ============================================================================= Show your support by Subscribing to the channel:- https://www.youtube.com/c/ParagDhawan... ============================================================================= #ParagDhawan #PythonCrashCourse #Python #PythonTutorialForBeginners #PythonForDataScience #PythonProgramming #PythonProgrammingLanguage #PythonTutorial #PythonCode #Python3 ============================================================ How to Record Your Screen and make a tutorial video or demo video: -    • How to Record Screen and Edit Video Using ...   ============================================================