Question

我正在创建package，首先我在本地安装python setup.py develop我在调用程序时遇到问题

>>> import cstm.artefact as art
>>> art.what_is('Objname', 'en')
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/home/guinsly/development/public/project/jeunesse/canadian_science_and_t
echnology_museum_api/cstm/artefact.py", line 56, in what_is
    valeur = open_file(keywords, lang)
  File "/home/guinsly/development/public/project/jeunesse/canadian_science_and_t
echnology_museum_api/cstm/artefact.py", line 24, in open_file
    book = xlrd.open_workbook(path)
  File "/usr/lib/python2.7/dist-packages/xlrd/__init__.py", line 394, in open_wo
rkbook
    f = open(filename, "rb")
IOError: [Errno 2] No such file or directory: '/home/guinsly/cstm/data/data.xls'

因此，我创建的软件包位于此路径/home/guinsly/development/public/project/jeunesse/canadian_science_and_technology_museum_api/cstm/

但是当我运行.xls控制台时，程序包会尝试打开bpython文件。

在我的包装上，我的测试没问题

-> % py.test -v
============================== test session starts ==============================
platform linux -- Python 3.4.0 -- py-1.4.26 -- pytest-2.6.4 -- /usr/bin/python3
plugins: quickcheck
collected 4 items 

test_artefact.py::TestArtefact::test_definition PASSED
test_artefact.py::TestArtefact::test_definition_fr PASSED
test_artefact.py::TestArtefact::test_definition_not_found PASSED
test_artefact.py::TestArtefact::test_definition_not_found_fr PASSED

=========================== 4 passed in 0.09 seconds ============================
guinsly@guinsly-ThinkPad-L430 [09:46:33] [~/development/public/project/jeunesse/canadian_science_and_technology_museum_api]

问题：如何在此功能上正确设置路径

def open_file(keywords, lang = 'en'):
    """
    Open and read an Excel file
    """
    directory = os.getcwd()
    path = directory+"/cstm/data/data.xls"

....

Answer 1

您正在使用相对于当前工作目录的路径，而不是相对于您的项目。当前工作目录由用户设置（例如，基于其在终端中的当前位置）。

使用模块的__file__全局模块确定模块位置：

import os

module_path = os.path.dirname(os.path.abspath(__file__))

并将文件路径相对于：

path = os.path.join(module_path, "cstm/data/data.xls")

如何在python包中设置路径

1 个答案: