added generating random data tutorial

x4nth055 · x4nth055 · commit 03d117944ce2 · 2019-12-21T15:15:42.000+01:00
diff --git a/README.md b/README.md
@@ -72,5 +72,6 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
     - [How to Manipulate IP Addresses in Python using ipaddress module](https://www.thepythoncode.com/article/manipulate-ip-addresses-using-ipaddress-module-in-python). ([code](general/ipaddress-module))
     - [How to Send Emails in Python using smtplib Module](https://www.thepythoncode.com/article/sending-emails-in-python-smtplib). ([code](general/email-sender))
     - [How to Handle Files in Python using OS Module](https://www.thepythoncode.com/article/file-handling-in-python-using-os-module). ([code](python-standard-library/handling-files))
+    - [How to Generate Random Data in Python](https://www.thepythoncode.com/article/generate-random-data-in-python). ([code](python-standard-library/generating-random-data))
 
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diff --git a/python-standard-library/generating-random-data/README.md b/python-standard-library/generating-random-data/README.md
@@ -0,0 +1 @@
+# [How to Generate Random Data in Python](https://www.thepythoncode.com/article/generate-random-data-in-python)
diff --git a/python-standard-library/generating-random-data/generate.py b/python-standard-library/generating-random-data/generate.py
@@ -0,0 +1,53 @@
+import random
+import os
+import string
+import secrets
+
+# generate random integer between a and b (including a and b)
+randint = random.randint(1, 500)
+print("randint:", randint)
+
+# generate random integer from range
+randrange = random.randrange(0, 500, 5)
+print("randrange:", randrange)
+
+# get a random element from this list
+choice = random.choice(["hello", "hi", "welcome", "bye", "see you"])
+print("choice:", choice)
+
+# get 5 random elements from 0 to 1000
+choices = random.choices(range(1000), k=5)
+print("choices:", choices)
+
+# generate a random floating point number from 0.0 <= x <= 1.0
+randfloat = random.random()
+print("randfloat between 0.0 and 1.0:", randfloat)
+
+# generate a random floating point number such that a <= x <= b
+randfloat = random.uniform(5, 10)
+print("randfloat between 5.0 and 10.0:", randfloat)
+
+l = list(range(10))
+print("Before shuffle:", l)
+random.shuffle(l)
+print("After shuffle:", l)
+
+# generate a random string
+randstring = ''.join(random.sample(string.ascii_letters, 16))
+print("Random string with 16 characters:", randstring)
+
+# crypto-safe byte generation
+randbytes_crypto = os.urandom(16)
+print("Random bytes for crypto use using os:", randbytes_crypto)
+
+# or use this
+randbytes_crypto = secrets.token_bytes(16)
+print("Random bytes for crypto use using secrets:", randbytes_crypto)
+
+# crypto-secure string generation
+randstring_crypto = secrets.token_urlsafe(16)
+print("Random strings for crypto use:", randstring_crypto)
+
+# crypto-secure bits generation
+randbits_crypto = secrets.randbits(16)
+print("Random 16-bits for crypto use:", randbits_crypto)

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+# [How to Generate Random Data in Python](https://www.thepythoncode.com/article/generate-random-data-in-python)`