odoo11 库存模块安装时出现 python yaml 错误。 yaml.constructor.ConstructorError : could not determine a constructor for the tag '!python'

Question

我已经设置了一个 odoo11 数据库并尝试安装 stock 模块，但它会生成 python yaml 错误。

错误日志:

2019-04-09 12:21:06,147 15820 INFO sicpa_db odoo.modules.loading: loading stock/views/stock_template.xml
2019-04-09 12:21:06,391 15820 INFO sicpa_db odoo.modules.loading: loading stock/views/procurement_views.xml
2019-04-09 12:21:06,546 15820 INFO sicpa_db odoo.modules.loading: loading stock/data/default_barcode_patterns.xml
2019-04-09 12:21:06,592 15820 INFO sicpa_db odoo.modules.loading: loading stock/data/stock_data.xml
2019-04-09 12:21:07,294 15820 INFO sicpa_db odoo.modules.loading: loading stock/data/stock_data.yml
2019-04-09 12:21:07,300 15820 WARNING sicpa_db odoo.modules.loading: Transient module states were reset
2019-04-09 12:21:07,336 15820 ERROR sicpa_db odoo.modules.registry: Failed to load registry
Traceback (most recent call last):
  File "/home/gajanan/others/erp/odoo11-git/odoo/modules/registry.py", line 85, in new
    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
  File "/home/gajanan/others/erp/odoo11-git/odoo/modules/loading.py", line 380, in load_modules
    loaded_modules, update_module, models_to_check)
  File "/home/gajanan/others/erp/odoo11-git/odoo/modules/loading.py", line 274, in load_marked_modules
    perform_checks=perform_checks, models_to_check=models_to_check
  File "/home/gajanan/others/erp/odoo11-git/odoo/modules/loading.py", line 181, in load_module_graph
    _load_data(cr, module_name, idref, mode, kind='data')
  File "/home/gajanan/others/erp/odoo11-git/odoo/modules/loading.py", line 95, in _load_data
    tools.convert_file(cr, module_name, filename, idref, mode, noupdate, kind, report)
  File "/home/gajanan/others/erp/odoo11-git/odoo/tools/convert.py", line 789, in convert_file
    convert_yaml_import(cr, module, fp, kind, idref, mode, noupdate, report)
  File "/home/gajanan/others/erp/odoo11-git/odoo/tools/yaml_import.py", line 854, in yaml_import
    yaml_interpreter.process(yaml_string)
  File "/home/gajanan/others/erp/odoo11-git/odoo/tools/yaml_import.py", line 794, in process
    for node in yaml.load(yaml_string):
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/__init__.py", line 114, in load
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 43, in get_single_data
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 52, in construct_document
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 404, in construct_yaml_map
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 210, in construct_mapping
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 131, in construct_mapping
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 92, in construct_object
  File "/home/gajanan/.local/lib/python3.5/site-packages/yaml/constructor.py", line 420, in construct_undefined
yaml.constructor.ConstructorError: could not determine a constructor for the tag '!python'
  in "<byte string>", line 2, column 3:
      !python {model: ir.model.data, i ... 
      ^

我也无法安装其他应用程序，请帮忙。

Answer 1

您可能遇到问题，因为 PyYAML 进行了一些重大更改，并且依赖于 PyYAML 的软件包尚未更新和/或尚未固定到旧版本的 PyYAML。

您应该做的是运行 pip list 并查看您拥有的 PyYAML 版本。如果该版本 >= 4.0，则运行:

pip install -U pyyaml==3.13

PyYAML 不在 odoo 的 requirements.txt 中，因此您可能获得了最新版本的 PyYAML，该版本不再(不再)兼容。