added working with json program

Author: rahulhgdev

Beginner_Level/working with json/file.txt

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+{"aspire_7": {"cpu": "i5-9300h", "gpu": "gtx 1650 4gb ddr5", "ram": "8gb", "refresh rate": "60hz", "weight": "2.2kg", "wifi ": 6}, "nitro_5": {"cpu": "r5-3500h", "gpu": "gtx 1650 4gb ddr5", "ram": "8gb", "refresh rate": "120hz", "weight": "2.5kg", "wifi ": 5}}

Beginner_Level/working with json/reading_json_file.py

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+Python 3.9.1 (tags/v3.9.1:1e5d33e, Dec  7 2020, 17:08:21) [MSC v.1927 64 bit (AMD64)] on win32
+Type "help", "copyright", "credits" or "license()" for more information.
+>>> f=open("E:\\Python\\Beginner_Level\\working with json\\file.txt",'r')
+>>> s=f.read()
+>>> s
+'{"aspire_7": {"cpu": "i5-9300h", "gpu": "gtx 1650 4gb ddr5", "ram": "8gb", "refresh rate": "60hz", "weight": "2.2kg", "wifi ": 6}, "nitro_5": {"cpu": "r5-3500h", "gpu": "gtx 1650 4gb ddr5", "ram": "8gb", "refresh rate": "120hz", "weight": "2.5kg", "wifi ": 5}}'
+>>> # convert from json to dictionary
+>>> import json
+>>> laptop = json.loads(s)
+>>> laptop
+{'aspire_7': {'cpu': 'i5-9300h', 'gpu': 'gtx 1650 4gb ddr5', 'ram': '8gb', 'refresh rate': '60hz', 'weight': '2.2kg', 'wifi ': 6}, 'nitro_5': {'cpu': 'r5-3500h', 'gpu': 'gtx 1650 4gb ddr5', 'ram': '8gb', 'refresh rate': '120hz', 'weight': '2.5kg', 'wifi ': 5}}
+>>> # difference above 2 output is 1st one is json/string and 2nd one is dictionary
+>>> type(laptop)
+<class 'dict'>
+>>> type(s)
+<class 'str'>
+>>> laptop['aspire_7']['gpu']
+'gtx 1650 4gb ddr5'
+>>> laptop['nitro_5']['']
+Traceback (most recent call last):
+  File "<pyshell#11>", line 1, in <module>
+    laptop['nitro_5']['']
+KeyError: ''
+>>> # to print weight of laptop in laptop dictionary
+>>> for weight in laptop:
+	print(laptop['weight'])
+
+	
+Traceback (most recent call last):
+  File "<pyshell#15>", line 2, in <module>
+    print(laptop['weight'])
+KeyError: 'weight'
+>>> for weight in laptop:
+	print(laptop[weight])
+
+	
+{'cpu': 'i5-9300h', 'gpu': 'gtx 1650 4gb ddr5', 'ram': '8gb', 'refresh rate': '60hz', 'weight': '2.2kg', 'wifi ': 6}
+{'cpu': 'r5-3500h', 'gpu': 'gtx 1650 4gb ddr5', 'ram': '8gb', 'refresh rate': '120hz', 'weight': '2.5kg', 'wifi ': 5}
+>>> 

Beginner_Level/working with json/working_with_JSON.py

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+laptop = {}
+laptop['aspire_7'] = {
+    'cpu' : 'i5-9300h',
+    'gpu' : 'gtx 1650 4gb ddr5',
+    'ram' : '8gb',
+    'refresh rate' : '60hz',
+    'weight': '2.2kg',
+    'wifi ' : 6
+}
+laptop['nitro_5'] = {
+    'cpu' : 'r5-3500h',
+    'gpu' : 'gtx 1650 4gb ddr5',
+    'ram' : '8gb',
+    'refresh rate' : '120hz',
+    'weight': '2.5kg',
+    'wifi ' : 5
+}
+
+import json
+s = json.dumps(laptop)              # convert dictionary to JSON format i.e is exchangeable
+print(s)
+
+# to store json in a file
+
+with open("E:\\Python\Beginner_Level\\working with json\\file.txt",'w') as f:
+    f.write(s)