beremiz

Attempt to workaround problem reported about empty plc.xml after unrelated crash. Now, if etree model is corrupted in a way tostring() would generate an empty string, exception prevents saving.
svghmi
2020-08-31, Edouard Tisserant
4ac68ec9786f
Parents d46d545ff7b7
Children f9d494d11339
Attempt to workaround problem reported about empty plc.xml after unrelated crash. Now, if etree model is corrupted in a way tostring() would generate an empty string, exception prevents saving.
1 files changed, 7 insertions(+), 3 deletions(-)
  • +7 -3
    plcopen/plcopen.py
    • --- a/plcopen/plcopen.py Fri Aug 28 15:29:35 2020 +0200
    +++ b/plcopen/plcopen.py Mon Aug 31 13:54:08 2020 +0200
    @@ -331,12 +331,16 @@
    def SaveProject(project, filepath):
    - project_file = open(filepath, 'w')
    - project_file.write(etree.tostring(
    + content = etree.tostring(
    project,
    pretty_print=True,
    xml_declaration=True,
    - encoding='utf-8'))
    + encoding='utf-8')
    +
    + assert len(content) != 0
    +
    + project_file = open(filepath, 'w')
    + project_file.write(content)
    project_file.close()