make OSX not use multiprocessing or freezing support instead

gdc_client/parcel/segment.py

@@ -18,7 +18,7 @@
 
 from intervaltree import Interval, IntervalTree
 
-from gdc_client.parcel.portability import OS_WINDOWS
+from gdc_client.parcel.portability import OS_OSX, OS_WINDOWS
 from gdc_client.parcel.utils import (
     get_file_transfer_pbar,
     get_percentage_pbar,
@@ -30,7 +30,7 @@
 )
 from gdc_client.parcel.const import SAVE_INTERVAL
 
-if OS_WINDOWS:
+if OS_WINDOWS or OS_OSX:
     WINDOWS = True
     from queue import Queue
 else:

gdc_client/upload/client.py

@@ -15,6 +15,7 @@
 import yaml
 from lxml import etree
 
+from gdc_client.parcel import portability
 from gdc_client.parcel.utils import get_file_transfer_pbar, get_percentage_pbar
 from gdc_client.upload import manifest
 
@@ -27,7 +28,7 @@
 
 OS_WINDOWS = platform.system() == "Windows"
 
-if not OS_WINDOWS:
+if not OS_WINDOWS or portability.OS_OSX:
     from mmap import PROT_READ
 else:
     from multiprocessing import freeze_support
@@ -77,7 +78,7 @@ def upload_multipart(
         try:
             log.debug(f"Start upload part {part_number}")
             with open(filename, "rb") as source:
-                if OS_WINDOWS:
+                if OS_WINDOWS or portability.OS_OSX:
                     chunk_file = mmap(
                         fileno=source.fileno(),
                         length=num_bytes,
@@ -112,7 +113,6 @@ def upload_multipart(
             log.debug(f"Retry upload part {part_number}, {res.content}")
 
         except Exception as e:
-
             if debug:
                 log.exception(f"Part upload failed: {e}. Retrying")
 
@@ -178,7 +178,6 @@ def __init__(
     def _get_node_metadata_via_graphql(
         self, node_id, node_type="node", fields=("project_id", "file_name")
     ):
-
         query_template = 'query Files { %s (id: "%s") { %s } }'
         query = {
             "query": query_template % (node_type, node_id, " ".join(fields)),
@@ -367,7 +366,6 @@ def upload(self):
             if not self.multipart:
                 self._upload()
             else:
-
                 if self.file_size < self.upload_part_size:
                     log.info(
                         "File size smaller than part size {}, do simple upload".format(