[Sync Iteration] python/bob/2

solutions/python/bob/2/bob.py

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+"""
+Your task is to determine what Bob will reply to someone when they say something to him or ask him a question.
+
+Bob only ever answers one of five things:
+
+- "Sure." This is his response if you ask him a question, such as "How are you?"
+  The convention used for questions is that it ends with a question mark.
+- "Whoa, chill out!" This is his answer if you YELL AT HIM.
+  The convention used for yelling is ALL CAPITAL LETTERS.
+- "Calm down, I know what I'm doing!" This is what he says if you yell a question at him.
+- "Fine. Be that way!" This is how he responds to silence.
+  The convention used for silence is nothing, or various combinations of whitespace characters.
+- "Whatever." This is what he answers to anything else.
+"""
+
+
+def response(hey_bob: str) -> str:
+    """
+    Determine what Bob will reply to someone when they say something to him or ask him a question.
+
+    :param hey_bob: str
+    :return: str
+    """
+    # Remove whitespaces
+    hey_bob = hey_bob.strip()
+
+    # Empty string -> responds to silence.
+    if not hey_bob:
+        return "Fine. Be that way!"
+
+    # Yell at Bob
+    if hey_bob == hey_bob.upper() and any(char.isalpha() for char in hey_bob):
+        # Yell a question
+        if is_question(hey_bob):
+            return "Calm down, I know what I'm doing!"
+        return "Whoa, chill out!"
+
+    # Ask question
+    if is_question(hey_bob):
+        return "Sure."
+
+    # Anything else.
+    return "Whatever."
+
+
+def is_question(hey_bob: str) -> bool:
+    """
+    Determine if you ask/yell a question.
+
+    :param hey_bob: str
+    :return: bool
+    """
+    return hey_bob[-1] == '?'