Basic

strmthds.py

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+str="tech is BEST @19 #101"
+    #methods
+#returns size of given str
+size=len(str)
+print(size)
+
+#returns an index of given str
+print(str.index("@19") )
+
+#checking all chars are alphabets or digits
+print(str.isalnum() )
+
+#checking all chars are alphabets 
+print(str.isalpha() )
+
+#checking all chars are digits
+print(str.isdigit() )
+
+#checking all chars are digits
+print("5050".isdigit() )
+
+#checking all chars are in upper case
+print(str.isupper() )
+
+#checking all chars are in lower case
+print(str.islower() )
+
+#checking all chars are space
+print(" ".isspace() )
+
+#replecing old str with new new str
+print(str.replace("@19",'@2019') )
+
+#capitalize
+print(str.capitalize() )
+
+#swapping case
+print(str.swapcase() )
+
+#counting no of occurances
+print(str.count('1') )
+
+#splitting str by delimiter 
+tokens= str.split(" ")
+print(tokens)