Utilize pylint como linter y corregi la mayoria de los errores

files/categories.py

@@ -1,4 +1,5 @@
-from flask import Flask, Blueprint, flash, request, redirect, url_for, current_app, render_template, jsonify
+from flask import Blueprint, flash, request, redirect, url_for
+from flask import render_template
 from files.auth import admin_required
 from files.models import Category, db
 
@@ -24,19 +25,22 @@ def create():
         if error is not None:
             flash(error)
         else:
-            c = Category(name)
-            db.session.add(c)
+            category = Category(name)
+            db.session.add(category)
             db.session.commit()
             return redirect(url_for('categories.index'))
 
     return render_template('categories/create.html')
 
 
-@bp.route('<int:id>')
-def view(id):
-    category = Category.query.get(id)
+@bp.route('<int:category_id>')
+def view(category_id):
+    category = Category.query.get(category_id)
     files = category.files
-    return render_template('categories/view.html', category=category, files=files)
+    return render_template(
+        'categories/view.html',
+        category=category,
+        files=files)
 
 
 @bp.route('/<int:id>/update')