title: AttributeError: module 'os' has no attribute 'chdir'
body: <p>In Python 3, I just tried to change my working directory in the following way:</p>
  <pre><code>import os 
  
  DIR = 'C:/Users/Emil/files/'
  
  os.chdir(DIR)
  </code></pre>
  <p>This used to work for me. However, now I get the error:</p>
  <pre><code>AttributeError: module 'os' has no attribute 'chdir'
  </code></pre>
  <p>Who can tell me what's going wrong here and how I can resolve this?</p>
  <p>Other os modules still seem to work fine. When I run:</p>
  <pre><code>for file in os.listdir(DIR):
      print(file)
  </code></pre>
  <p>It gives me the output I expect.</p>
  <p>Additionally, when I run:</p>
  <pre><code>sys.modules['os']
  </code></pre>
  <p>The output is:</p>
  <pre><code>&lt;module 'os' from 'C:\\Users\\20200016\\AppData\\Local\\Continuum\\anaconda3\\lib\\os.py'&gt;
  </code></pre>
  <p>And:</p>
  <pre><code>dir(os)
  </code></pre>
  <p>Outputs:</p>
  <pre><code>['DirEntry',
   'F_OK',
   'MutableMapping',
   'O_APPEND',
   'O_BINARY',
   'O_CREAT',
   'O_EXCL',
   'O_NOINHERIT',
   'O_RANDOM',
   'O_RDONLY',
   'O_RDWR',
   'O_SEQUENTIAL',
   'O_SHORT_LIVED',
   'O_TEMPORARY',
   'O_TEXT',
   'O_TRUNC',
   'O_WRONLY',
   'P_DETACH',
   'P_NOWAIT',
   'P_NOWAITO',
   'P_OVERLAY',
   'P_WAIT',
   'PathLike',
   'R_OK',
   'SEEK_CUR',
   'SEEK_END',
   'SEEK_SET',
   'TMP_MAX',
   'W_OK',
   'X_OK',
   '_Environ',
   '__all__',
   '__builtins__',
   '__cached__',
   '__doc__',
   '__file__',
   '__loader__',
   '__name__',
   '__package__',
   '__spec__',
   '_execvpe',
   '_exists',
   '_exit',
   '_fspath',
   '_get_exports_list',
   '_putenv',
   '_unsetenv',
   '_wrap_close',
   'abc',
   'abort',
   'access',
   'altsep',
   'chmod',
   'close',
   'closerange',
   'cpu_count',
   'curdir',
   'defpath',
   'device_encoding',
   'devnull',
   'dup',
   'dup2',
   'environ',
   'error',
   'execl',
   'execle',
   'execlp',
   'execlpe',
   'execv',
   'execve',
   'execvp',
   'execvpe',
   'extsep',
   'fdopen',
   'fsdecode',
   'fsencode',
   'fspath',
   'fstat',
   'fsync',
   'ftruncate',
   'get_exec_path',
   'get_handle_inheritable',
   'get_inheritable',
   'get_terminal_size',
   'getcwd',
   'getcwdb',
   'getenv',
   'getlogin',
   'getpid',
   'getppid',
   'isatty',
   'kill',
   'linesep',
   'link',
   'listdir',
   'lseek',
   'lstat',
   'makedirs',
   'mkdir',
   'name',
   'open',
   'pardir',
   'path',
   'pathsep',
   'pipe',
   'popen',
   'putenv',
   'read',
   'readlink',
   'remove',
   'removedirs',
   'rename',
   'renames',
   'replace',
   'rmdir',
   'scandir',
   'sep',
   'set_handle_inheritable',
   'set_inheritable',
   'spawnl',
   'spawnle',
   'spawnv',
   'spawnve',
   'st',
   'startfile',
   'stat',
   'stat_result',
   'statvfs_result',
   'strerror',
   'supports_bytes_environ',
   'supports_dir_fd',
   'supports_effective_ids',
   'supports_fd',
   'supports_follow_symlinks',
   'symlink',
   'sys',
   'system',
   'terminal_size',
   'times',
   'times_result',
   'truncate',
   'umask',
   'uname_result',
   'unlink',
   'urandom',
   'utime',
   'waitpid',
   'walk',
   'write']
  </code></pre>