diff --git a/app.py b/app.py
index 97f6a52..cb3f2a1 100644
--- a/app.py
+++ b/app.py
@@ -41,7 +41,9 @@ def index():
     cash = db.execute("SELECT * FROM users where id = ?", user_id)
 
     stocks = db.execute(
-        "SELECT symbol, sum(shares) FROM transactions WHERE user_id = ? GROUP BY symbol HAVING sum(shares) > 0", user_id)
+        "SELECT symbol, sum(shares) FROM transactions WHERE user_id = ? GROUP BY symbol HAVING sum(shares) > 0",
+        user_id,
+    )
 
     stocks_total = 0
 
@@ -60,13 +62,15 @@ def index():
     # Get total value of stocks and cash
     total = cash[0]["cash"] + stocks_total
 
-    return render_template("home.html", cash=cash[0]["cash"], stocks=stocks, total=total)
+    return render_template(
+        "home.html", cash=cash[0]["cash"], stocks=stocks, total=total
+    )
     # return apology("MOFO")
 
 
 @app.route("/buy", methods=["GET", "POST"])
 @login_required
-def buy():#
+def buy():
     """Buy shares of stock"""
     if request.method == "GET":
         return render_template("buy.html")
@@ -90,7 +94,9 @@ def buy():#
                 transaction_value = float(shares) * stock["price"]
 
                 user_id = session["user_id"]
-                user_cash_db = db.execute("SELECT cash FROM users WHERE id = ?", user_id)
+                user_cash_db = db.execute(
+                    "SELECT cash FROM users WHERE id = ?", user_id
+                )
                 user_cash = user_cash_db[0]["cash"]
 
                 if user_cash < transaction_value:
@@ -102,8 +108,14 @@ def buy():#
 
                 date = datetime.datetime.now()
 
-                db.execute("INSERT INTO transactions (user_id, symbol, shares, price, date) VALUES (?, ?, ?, ?, ?)",
-                        user_id, stock["symbol"], shares, stock["price"], date)
+                db.execute(
+                    "INSERT INTO transactions (user_id, symbol, shares, price, date) VALUES (?, ?, ?, ?, ?)",
+                    user_id,
+                    stock["symbol"],
+                    shares,
+                    stock["price"],
+                    date,
+                )
 
                 flash("Bought!")
             else:
@@ -220,8 +232,11 @@ def register():
         if username_exists:
             return apology("username already exists!", 400)
 
-        db.execute("INSERT INTO users(username, hash) VALUES(?, ?)",
-                   username, generate_password_hash(password))
+        db.execute(
+            "INSERT INTO users(username, hash) VALUES(?, ?)",
+            username,
+            generate_password_hash(password),
+        )
         return redirect("/")
     else:
         return render_template("register.html")
@@ -247,7 +262,10 @@ def sell():
             return apology("Symbol not found")
 
         stocks = db.execute(
-            "SELECT symbol, sum(shares) FROM transactions WHERE user_id = ? AND symbol = ?", user_id, symbol)
+            "SELECT symbol, sum(shares) FROM transactions WHERE user_id = ? AND symbol = ?",
+            user_id,
+            symbol,
+        )
 
         if stocks[0]["sum(shares)"] < shares:
             return apology("Not enough shares")
@@ -263,8 +281,14 @@ def sell():
 
         date = datetime.datetime.now()
 
-        db.execute("INSERT INTO transactions (user_id, symbol, shares, price, date) VALUES (?, ?, ?, ?, ?)",
-                   user_id, stock["symbol"], -abs(shares), stock["price"], date)
+        db.execute(
+            "INSERT INTO transactions (user_id, symbol, shares, price, date) VALUES (?, ?, ?, ?, ?)",
+            user_id,
+            stock["symbol"],
+            -abs(shares),
+            stock["price"],
+            date,
+        )
 
         flash("Sold!")
 
@@ -272,6 +296,8 @@ def sell():
 
     else:
         stocks = db.execute(
-            "SELECT symbol FROM transactions WHERE user_id = ? GROUP BY symbol HAVING sum(shares) > 0", user_id)
+            "SELECT symbol FROM transactions WHERE user_id = ? GROUP BY symbol HAVING sum(shares) > 0",
+            user_id,
+        )
         return render_template("sell.html", stocks=stocks)
     # return apology("TODO")
diff --git a/flask_session/16fa13c5890feb947b5d5c907cfedf5b b/flask_session/16fa13c5890feb947b5d5c907cfedf5b
deleted file mode 100644
index 4bd85b0..0000000
Binary files a/flask_session/16fa13c5890feb947b5d5c907cfedf5b and /dev/null differ
diff --git a/flask_session/2029240f6d1128be89ddc32729463129 b/flask_session/2029240f6d1128be89ddc32729463129
deleted file mode 100644
index 7f5741f..0000000
Binary files a/flask_session/2029240f6d1128be89ddc32729463129 and /dev/null differ
diff --git a/flask_session/39b31c290f4b506fd545e82536ad3484 b/flask_session/39b31c290f4b506fd545e82536ad3484
deleted file mode 100644
index 2f7fa3a..0000000
Binary files a/flask_session/39b31c290f4b506fd545e82536ad3484 and /dev/null differ
diff --git a/templates/buy.html b/templates/buy.html
index b34ebb5..2659c6e 100644
--- a/templates/buy.html
+++ b/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="text">
+            <input class="form-control mx-auto w-auto" autocomplete="off" autofocus min="1" name="shares" placeholder="Shares" type="number">
         </div>
         <button class="btn btn-primary" type="submit">Buy</button>
     </form>