pse post-processing is only compiled when needed

ppocr/postprocess/__init__.py

@@ -18,7 +18,6 @@ from __future__ import print_function
 from __future__ import unicode_literals
 
 import copy
-import platform
 
 __all__ = ['build_post_process']
 
@@ -26,21 +25,24 @@ from .db_postprocess import DBPostProcess, DistillationDBPostProcess
 from .east_postprocess import EASTPostProcess
 from .sast_postprocess import SASTPostProcess
 from .rec_postprocess import CTCLabelDecode, AttnLabelDecode, SRNLabelDecode, DistillationCTCLabelDecode, \
-    TableLabelDecode, NRTRLabelDecode, SARLabelDecode , SEEDLabelDecode
+    TableLabelDecode, NRTRLabelDecode, SARLabelDecode, SEEDLabelDecode
 from .cls_postprocess import ClsPostProcess
 from .pg_postprocess import PGPostProcess
-from .pse_postprocess import PSEPostProcess
 
 
 def build_post_process(config, global_config=None):
     support_dict = [
-        'DBPostProcess', 'PSEPostProcess', 'EASTPostProcess', 'SASTPostProcess',
-        'CTCLabelDecode', 'AttnLabelDecode', 'ClsPostProcess', 'SRNLabelDecode',
-        'PGPostProcess', 'DistillationCTCLabelDecode', 'TableLabelDecode',
+        'DBPostProcess', 'EASTPostProcess', 'SASTPostProcess', 'CTCLabelDecode',
+        'AttnLabelDecode', 'ClsPostProcess', 'SRNLabelDecode', 'PGPostProcess',
+        'DistillationCTCLabelDecode', 'TableLabelDecode',
         'DistillationDBPostProcess', 'NRTRLabelDecode', 'SARLabelDecode',
         'SEEDLabelDecode'
     ]
 
+    if config['name'] == 'PSEPostProcess':
+        from .pse_postprocess import PSEPostProcess
+        support_dict.append('PSEPostProcess')
+
     config = copy.deepcopy(config)
     module_name = config.pop('name')
     if global_config is not None:

ppocr/postprocess/pse_postprocess/pse/__init__.py

@@ -21,8 +21,9 @@ ori_path = os.getcwd()
 os.chdir('ppocr/postprocess/pse_postprocess/pse')
 if subprocess.call(
         '{} setup.py build_ext --inplace'.format(python_path), shell=True) != 0:
-    raise RuntimeError('Cannot compile pse: {}'.format(
-        os.path.dirname(os.path.realpath(__file__))))
+    raise RuntimeError(
+        'Cannot compile pse: {}, if your system is windows, you need to install all the default components of `desktop development using C++` in visual studio 2019+'.
+        format(os.path.dirname(os.path.realpath(__file__))))
 os.chdir(ori_path)
 
 from .pse import pse