old_contents: from os.path import basename, dirname, join
  import json
  import sys
  import subprocess
  
  CONDA_PREFIX = sys.prefix
  BIN_DIR = 'Scripts' if sys.platform.startswith('win') else 'bin'
  CONDA_EXE = join(CONDA_PREFIX, BIN_DIR, 'conda')
  
  
  def get_conda_root():
      """Get the PREFIX of the conda installation.
  
      Returns:
          str: the ROOT_PREFIX of the conda installation
      """
      try:
          # Fast-path
          # We're in the root environment
          import conda.config
          conda_root = conda.config.root_dir
      except ImportError:
          # We're not in the root environment.
          envs_dir = dirname(CONDA_PREFIX)
          if basename(envs_dir) == 'envs':
              # We're in a named environment: `conda create -n <name>`
              conda_root = dirname(envs_dir)
          else:
              # We're in an isolated environment: `conda create -p <path>`
              # The only way we can find out is by calling conda.
              try:
                  conda_info = json.loads(subprocess.check_output([CONDA_EXE, 'info', '--json']))
                  conda_root = conda_info['root_prefix']
              except (ValueError, KeyError, subprocess.CalledProcessError):
                  conda_root = None
  
      return conda_root
  
  CONDA_ROOT = get_conda_root()
  
new_contents: from os.path import basename, dirname, join
  import json
  import sys
  import subprocess
  
  WINDOWS = sys.platform.startswith('win')
  CONDA_PREFIX = sys.prefix
  BIN_DIR = 'Scripts' if WINDOWS else 'bin'
  CONDA_EXE = join(CONDA_PREFIX, BIN_DIR,
                   'conda.exe' if WINDOWS else 'conda.exe')
  
  
  def get_conda_root():
      """Get the PREFIX of the conda installation.
  
      Returns:
          str: the ROOT_PREFIX of the conda installation
      """
      try:
          # Fast-path
          # We're in the root environment
          import conda.config
          conda_root = conda.config.root_dir
      except ImportError:
          # We're not in the root environment.
          envs_dir = dirname(CONDA_PREFIX)
          if basename(envs_dir) == 'envs':
              # We're in a named environment: `conda create -n <name>`
              conda_root = dirname(envs_dir)
          else:
              # We're in an isolated environment: `conda create -p <path>`
              # The only way we can find out is by calling conda.
              try:
                  conda_info = json.loads(subprocess.check_output([CONDA_EXE, 'info', '--json']))
                  conda_root = conda_info['root_prefix']
              except (ValueError, KeyError, subprocess.CalledProcessError):
                  conda_root = None
  
      return conda_root
  
  CONDA_ROOT = get_conda_root()
  
subject: Call conda.exe on windows