parameters: (dist)
return_statement: return None
docstring: Return the path for the .egg-link file if it exists, otherwise, None.
  
  
  
      There's 3 scenarios:
  
      1) not in a virtualenv
  
         try to find in site.USER_SITE, then site_packages
  
      2) in a no-global virtualenv
  
         try to find in site_packages
  
      3) in a yes-global virtualenv
  
         try to find in site_packages, then site.USER_SITE
  
         (don't look in global location)
  
  
  
      For #1 and #3, there could be odd cases, where there's an egg-link in 2
  
      locations.
  
  
  
      This method will just return the first one found.
function: def egg_link_path(dist):
  
      # type: (Distribution) -> Optional[str]
  
      """
  
      Return the path for the .egg-link file if it exists, otherwise, None.
  
  
  
      There's 3 scenarios:
  
      1) not in a virtualenv
  
         try to find in site.USER_SITE, then site_packages
  
      2) in a no-global virtualenv
  
         try to find in site_packages
  
      3) in a yes-global virtualenv
  
         try to find in site_packages, then site.USER_SITE
  
         (don't look in global location)
  
  
  
      For #1 and #3, there could be odd cases, where there's an egg-link in 2
  
      locations.
  
  
  
      This method will just return the first one found.
  
      """
  
      sites = []
  
      if running_under_virtualenv():
  
          sites.append(site_packages)
  
          if not virtualenv_no_global() and user_site:
  
              sites.append(user_site)
  
      else:
  
          if user_site:
  
              sites.append(user_site)
  
          sites.append(site_packages)
  
  
  
      for site in sites:
  
          egglink = os.path.join(site, dist.project_name) + '.egg-link'
  
          if os.path.isfile(egglink):
  
              return egglink
  
      return None
function_tokens: def egg_link_path ( dist ) : # type: (Distribution) -> Optional[str] sites = [ ] if running_under_virtualenv ( ) : sites . append ( site_packages ) if not virtualenv_no_global ( ) and user_site : sites . append ( user_site ) else : if user_site : sites . append ( user_site ) sites . append ( site_packages ) for site in sites : egglink = os . path . join ( site , dist . project_name ) + '.egg-link' if os . path . isfile ( egglink ) : return egglink return None