diff --git a/clearml/utilities/pigar/extractor/__init__.py b/clearml/utilities/pigar/extractor/__init__.py
deleted file mode 100644
index ff65f902..00000000
--- a/clearml/utilities/pigar/extractor/__init__.py
+++ /dev/null
@@ -1,14 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from __future__ import print_function, division, absolute_import
-
-
-from ..utils import PY32
-
-
-if PY32:
-    from .thread_extractor import ThreadExtractor as Extractor
-else:
-    from .gevent_extractor import GeventExtractor as Extractor
-
-__all__ = ["Extractor"]
diff --git a/clearml/utilities/pigar/extractor/extractor.py b/clearml/utilities/pigar/extractor/extractor.py
deleted file mode 100644
index 508220dd..00000000
--- a/clearml/utilities/pigar/extractor/extractor.py
+++ /dev/null
@@ -1,36 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from __future__ import print_function, division, absolute_import
-
-import multiprocessing
-
-
-class BaseExtractor(object):
-
-    def __init__(self, names, max_workers=None):
-        self._names = names
-        self._max_workers = max_workers or (multiprocessing.cpu_count() * 4)
-
-    def run(self, job):
-        try:
-            self.extract(job)
-            self.wait_complete()
-        except KeyboardInterrupt:
-            print('** Shutting down ...')
-            self.shutdown()
-        else:
-            print('^.^ Extracting all packages done!')
-        finally:
-            self.final()
-
-    def extract(self, job):
-        raise NotImplementedError
-
-    def wait_complete(self):
-        raise NotImplementedError
-
-    def shutdown(self):
-        raise NotImplementedError
-
-    def final(self):
-        pass
diff --git a/clearml/utilities/pigar/extractor/gevent_extractor.py b/clearml/utilities/pigar/extractor/gevent_extractor.py
deleted file mode 100644
index ba7363c5..00000000
--- a/clearml/utilities/pigar/extractor/gevent_extractor.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from __future__ import print_function, division, absolute_import
-
-import sys
-
-import greenlet
-from gevent.pool import Pool
-
-from .extractor import BaseExtractor
-from ..log import logger
-
-
-class GeventExtractor(BaseExtractor):
-
-    def __init__(self, names, max_workers=222):
-        super(self.__class__, self).__init__(names, max_workers)
-        self._pool = Pool(self._max_workers)
-        self._exited_greenlets = 0
-
-    def extract(self, job):
-        job = self._job_wrapper(job)
-        for name in self._names:
-            if self._pool.full():
-                self._pool.wait_available()
-            self._pool.spawn(job, name)
-
-    def _job_wrapper(self, job):
-        def _job(name):
-            result = None
-            try:
-                result = job(name)
-            except greenlet.GreenletExit:
-                self._exited_greenlets += 1
-            except Exception:
-                e = sys.exc_info()[1]
-                logger.error('Extracting "{0}", got: {1}'.format(name, e))
-            return result
-        return _job
-
-    def wait_complete(self):
-        self._pool.join()
-
-    def shutdown(self):
-        self._pool.kill(block=True)
-
-    def final(self):
-        count = self._exited_greenlets
-        if count != 0:
-            print('** {0} running job exited.'.format(count))
diff --git a/clearml/utilities/pigar/extractor/thread_extractor.py b/clearml/utilities/pigar/extractor/thread_extractor.py
deleted file mode 100644
index e0a4ce73..00000000
--- a/clearml/utilities/pigar/extractor/thread_extractor.py
+++ /dev/null
@@ -1,45 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from __future__ import print_function, division, absolute_import
-
-import concurrent.futures
-
-from .extractor import BaseExtractor
-
-from ..log import logger
-
-
-class ThreadExtractor(BaseExtractor):
-    """Extractor use thread pool execute tasks.
-
-    Can be used to extract /simple/<pkg_name> or /pypi/<pkg_name>/json.
-
-    FIXME: can not deliver SIG_INT to threads in Python 2.
-    """
-
-    def __init__(self, names, max_workers=None):
-        super(self.__class__, self).__init__(names, max_workers)
-        self._futures = dict()
-
-    def extract(self, job):
-        """Extract url by package name."""
-        with concurrent.futures.ThreadPoolExecutor(
-                max_workers=self._max_workers) as executor:
-            for name in self._names:
-                self._futures[executor.submit(job, name)] = name
-
-    def wait_complete(self):
-        """Wait for futures complete done."""
-        for future in concurrent.futures.as_completed(self._futures.keys()):
-            try:
-                error = future.exception()
-            except concurrent.futures.CancelledError:
-                break
-            name = self._futures[future]
-            if error is not None:
-                err_msg = 'Extracting "{0}", got: {1}'.format(name, error)
-                logger.error(err_msg)
-
-    def shutdown(self):
-        for future in self._futures:
-            future.cancel()