old_contents: from colorama import Fore
  from pkgutil import iter_modules
  
  
  def check_import(packagename):
      """
      Checks that a package is present. Returns true if it is available, and
      false if not available.
      """
      if packagename in (name for _, name, _ in iter_modules()):
          return True
      else:
          return False
  
  
  packages = ['missingno', 'pytest', 'pytest_cov', 'tinydb', 'yaml',
              'pandas_summary', 'environment_kernels', 'hypothesis']
  
  try:
      for pkg in packages:
          assert check_import(pkg)
      print(Fore.GREEN + 'All packages found; environment checks passed.')
  except AssertionError:
      print(Fore.RED + f"{pkg} cannot be found. Please pip or conda install.")
  
new_contents: from colorama import Fore, Style
  from pkgutil import iter_modules
  
  
  def check_import(packagename):
      """
      Checks that a package is present. Returns true if it is available, and
      false if not available.
      """
      if packagename in (name for _, name, _ in iter_modules()):
          return True
      else:
          return False
  
  
  packages = ['missingno', 'pytest', 'pytest_cov', 'tinydb', 'yaml',
              'pandas_summary', 'environment_kernels', 'hypothesis']
  
  try:
      for pkg in packages:
          assert check_import(pkg)
      print(Fore.GREEN + 'All packages found; environment checks passed.')
  except AssertionError:
      print(Fore.RED + f"{pkg} cannot be found. Please pip or conda install.")
  
  Style.RESET_ALL
  
subject: Reset colors at the end