Merge pull request #2 from TechPrimers/learn/functions

MovingToWeb · web-flow · commit b2e11e370030 · 2020-03-30T11:25:23.000+05:30
Learn/functions
diff --git a/functions.py b/functions.py
@@ -0,0 +1,9 @@
+class Functions:
+
+    def __init__(self):
+        self._cache = []
+
+    def __call__(self, name):
+        if name not in self._cache:
+            self._cache.append(name)
+        return self._cache
diff --git a/functions_main.py b/functions_main.py
@@ -0,0 +1,4 @@
+from functions import Functions
+func = Functions()
+print(func("ajay"))
+print(func("jaga"))
diff --git a/strings.py b/strings.py
@@ -0,0 +1,38 @@
+# Strings are immutable. None of the changes affect the original variable unless assigned
+import string
+
+extractor="Hello World"
+print("Full String: ", extractor[:])
+
+print("Offset from 3: ", extractor[3:])
+print("Offset from :3 ", extractor[:3])
+print("Offset from 3:8 ", extractor[3:8])
+
+print("Last 3 characters: ", extractor[-3:])
+print("Last 3 characters: ", extractor[4:-3])
+
+print("By space: ", extractor.split(" "))
+
+strip_variable = "This has punctuations ..!!"
+print("Strip Punctuations: ", strip_variable.strip(string.punctuation))
+print("Strip White spaces: ", strip_variable.strip(string.whitespace))
+print("Strip Punctuations and White spaces: ", strip_variable.strip(string.whitespace + string.punctuation))
+
+print("Find the: ", strip_variable.find("the")) 
+print("rFind the: ", strip_variable.rfind("the")) 
+print("Find has: ", strip_variable.find("has")) 
+
+# Returns substring not found error unlike -1 in find
+# print("Index the: ", strip_variable.index("the"))
+# print("rIndex the: ", strip_variable.rindex("the"))
+
+
+count_variable = "This has repeated texts for counting texts"
+print("Count: ", count_variable.count("text"))
+
+alpha_variable = "Thishasnumbersandtexts2"
+print("alpha_variable isAlphanumberic: ", alpha_variable.isalnum())
+print("count_variable isAlphanumberic: ", count_variable.isalnum())
+
+title = "This is a title"
+print("Title: ", title.title())
