automated commit by check50 [check50=True]

app.py

@@ -78,7 +78,11 @@ def buy():
         if stock == None:
             return apology("Symbol not found")
 
-        if shares:
+        if not shares or shares.isalpha() or not float(shares).is_integer():
+            return apology("invalid shares")
+
+        else:
+            if float(shares) > 0:
                 transaction_value = float(shares) * stock["price"]
 
                 user_id = session["user_id"]

templates/buy.html

@@ -10,7 +10,7 @@
             <input class="form-control mx-auto w-auto" autocomplete="off" autofocus="" name="symbol" placeholder="Symbol" type="text">
         </div>
         <div class="mb-3">
-            <input class="form-control mx-auto w-auto" autocomplete="off" autofocus min="1" name="shares" placeholder="Shares" type="number">
+            <input class="form-control mx-auto w-auto" autocomplete="off" autofocus min="1" name="shares" placeholder="Shares" type="text">
         </div>
         <button class="btn btn-primary" type="submit">Buy</button>
     </form>