import os
import re
import sys

import settings

triggers = set()
timers = set()

class BadApplicationError(Exception): pass

def trigger(expression):
    def decorator(func):
        triggers.add((re.compile(expression), func))
    return decorator

def timer(time):
    def decorator(func):
        timers.add((time, func))
    return decorator

sys.path.insert(0, settings.APPLICATION_PATH)

for filename in os.listdir(settings.APPLICATION_PATH):
    if filename != '__init__.py' and filename[-3:] == '.py':
        if filename == 'triggers.py':
            raise BadApplicationException(
                "Application file can't be called triggers.py"
            )
        module = filename[:-3]
        if module in sys.modules:
            reload(sys.modules[module])
        else:
            __import__(module, locals(), globals())

import os
import re
import sys

import settings

triggers = set()
timers = set()

class BadApplicationError(Exception): pass

def trigger(expression):
    def decorator(func):
        triggers.add((re.compile(expression), func))
    return decorator

def timer(time):
    def decorator(func):
        timers.add((time, func))
    return decorator

sys.path.insert(0, settings.APPLICATION_PATH)

for filename in os.listdir(settings.APPLICATION_PATH):
    if filename != '__init__.py' and filename.endswith('.py'):
        if filename == 'triggers.py':
            raise BadApplicationException(
                "Application file can't be called triggers.py"
            )
        module = filename[:-3]
        if module in sys.modules:
            reload(sys.modules[module])
        else:
            __import__(module, locals(), globals())

Use `endswith` instead of string indeces.
Use `endswith` instead of string indeces.

  import os
  import re
  import sys
  
  import settings
  
  triggers = set()
  timers = set()
  
  class BadApplicationError(Exception): pass
  
  def trigger(expression):
      def decorator(func):
          triggers.add((re.compile(expression), func))
      return decorator
  
  def timer(time):
      def decorator(func):
          timers.add((time, func))
      return decorator
  
  sys.path.insert(0, settings.APPLICATION_PATH)
  
  for filename in os.listdir(settings.APPLICATION_PATH):
-     if filename != '__init__.py' and filename[-3:] == '.py':
+     if filename != '__init__.py' and filename.endswith('.py'):
          if filename == 'triggers.py':
              raise BadApplicationException(
                  "Application file can't be called triggers.py"
              )
          module = filename[:-3]
          if module in sys.modules:
              reload(sys.modules[module])
          else:
              __import__(module, locals(), globals())
  
Use `endswith` instead of string indeces.
## Code Before:
import os
import re
import sys

import settings

triggers = set()
timers = set()

class BadApplicationError(Exception): pass

def trigger(expression):
    def decorator(func):
        triggers.add((re.compile(expression), func))
    return decorator

def timer(time):
    def decorator(func):
        timers.add((time, func))
    return decorator

sys.path.insert(0, settings.APPLICATION_PATH)

for filename in os.listdir(settings.APPLICATION_PATH):
    if filename != '__init__.py' and filename[-3:] == '.py':
        if filename == 'triggers.py':
            raise BadApplicationException(
                "Application file can't be called triggers.py"
            )
        module = filename[:-3]
        if module in sys.modules:
            reload(sys.modules[module])
        else:
            __import__(module, locals(), globals())

## Instruction:
Use `endswith` instead of string indeces.
## Code After:
import os
import re
import sys

import settings

triggers = set()
timers = set()

class BadApplicationError(Exception): pass

def trigger(expression):
    def decorator(func):
        triggers.add((re.compile(expression), func))
    return decorator

def timer(time):
    def decorator(func):
        timers.add((time, func))
    return decorator

sys.path.insert(0, settings.APPLICATION_PATH)

for filename in os.listdir(settings.APPLICATION_PATH):
    if filename != '__init__.py' and filename.endswith('.py'):
        if filename == 'triggers.py':
            raise BadApplicationException(
                "Application file can't be called triggers.py"
            )
        module = filename[:-3]
        if module in sys.modules:
            reload(sys.modules[module])
        else:
            __import__(module, locals(), globals())
