PyCharm, some packages cannot import Pandas, ImportError: C extension: StringIO not built

Question

I have a very strange error and I can’t solve it.

I have a project with the following directory structure:

ptouch/
    ptouch/
        __init__.py
        ptouch.py
        io.py
    tests/
        __init__.py
        tests.py

I am using PyCharm community publication and Anaconda python distribution.

File: ptouch.pycontains the following code:

__author__ = 'foo'
import pandas as pd
df = pd.DataFrame()

Executing this file gives the following error:

C:\Anaconda\python.exe ~/ptouch.py
Traceback (most recent call last):
  File "~/ptouch.py", line 2, in <module>
    import pandas as pd
File "C:\Anaconda\lib\site-packages\pandas\__init__.py", line 13, in <module>
  "extensions first.".format(module))
ImportError: C extension: StringIO not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace' to build the C extensions first.

However, execution tests.pydoes not give errors and uses pandas without problems.

The file tests.pycontains the following code:

from unittest import TestCase
import pandas as pd
class Tests(TestCase):
    def test_pickle(self):
        d = pd.DataFrame(np.random.rand(50, 10))
        self.fail()

I tried to remove and reinstall pandas from both the condos and pipes to no avail. Creating a new project seems to be able to load pandas without any problems. I can not find any specific package parameters that may lead to this error.

, pandas - ? ?

Answer 1

'io.py' , -, pandas, .

io.py