--- a/env/lib/python3.7/site-packages/lockfile/symlinklockfile.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,70 +0,0 @@
-from __future__ import absolute_import
-
-import os
-import time
-
-from . import (LockBase, NotLocked, NotMyLock, LockTimeout,
-               AlreadyLocked)
-
-
-class SymlinkLockFile(LockBase):
-    """Lock access to a file using symlink(2)."""
-
-    def __init__(self, path, threaded=True, timeout=None):
-        # super(SymlinkLockFile).__init(...)
-        LockBase.__init__(self, path, threaded, timeout)
-        # split it back!
-        self.unique_name = os.path.split(self.unique_name)[1]
-
-    def acquire(self, timeout=None):
-        # Hopefully unnecessary for symlink.
-        # try:
-        #     open(self.unique_name, "wb").close()
-        # except IOError:
-        #     raise LockFailed("failed to create %s" % self.unique_name)
-        timeout = timeout if timeout is not None else self.timeout
-        end_time = time.time()
-        if timeout is not None and timeout > 0:
-            end_time += timeout
-
-        while True:
-            # Try and create a symbolic link to it.
-            try:
-                os.symlink(self.unique_name, self.lock_file)
-            except OSError:
-                # Link creation failed.  Maybe we've double-locked?
-                if self.i_am_locking():
-                    # Linked to out unique name. Proceed.
-                    return
-                else:
-                    # Otherwise the lock creation failed.
-                    if timeout is not None and time.time() > end_time:
-                        if timeout > 0:
-                            raise LockTimeout("Timeout waiting to acquire"
-                                              " lock for %s" %
-                                              self.path)
-                        else:
-                            raise AlreadyLocked("%s is already locked" %
-                                                self.path)
-                    time.sleep(timeout / 10 if timeout is not None else 0.1)
-            else:
-                # Link creation succeeded.  We're good to go.
-                return
-
-    def release(self):
-        if not self.is_locked():
-            raise NotLocked("%s is not locked" % self.path)
-        elif not self.i_am_locking():
-            raise NotMyLock("%s is locked, but not by me" % self.path)
-        os.unlink(self.lock_file)
-
-    def is_locked(self):
-        return os.path.islink(self.lock_file)
-
-    def i_am_locking(self):
-        return (os.path.islink(self.lock_file)
-                and os.readlink(self.lock_file) == self.unique_name)
-
-    def break_lock(self):
-        if os.path.islink(self.lock_file):  # exists && link
-            os.unlink(self.lock_file)