permit empty files

4 years ago · a834da494a
parent 2dc3857770
commit a834da494a
1 changed files with 3 additions and 0 deletions
--- a/cli.py
+++ b/cli.py
@ -284,6 +284,9 @@ def page2tsv(page_xml_file, tsv_out_file, image_url, ner_rest_endpoint, ned_rest

    tsv = pd.DataFrame(tsv, columns=['rid', 'line', 'hcenter'] + out_columns)

+    if len(tsv)==0:
+        return
+
    vlinecenter = pd.DataFrame(tsv[['line', 'top']].groupby('line', sort=False).mean().top +
                               (tsv[['line', 'bottom']].groupby('line', sort=False).mean().bottom -
                                tsv[['line', 'top']].groupby('line', sort=False).mean().top) / 2,