Pandas: ImportError: Can't determine version for bottleneck

[mlangiu]

conda create -n PANDAS pandas
activate PANDAS
python

```python
import pandas

Gives me
```python
ImportError: Can't determine version for bottleneck

Output of conda list

Name Version Build Channel

blas 1.0 mkl

ca-certificates 2019.10.16 0

certifi 2019.9.11 py37_0

icc_rt 2019.0.0 h0cc432a_1

intel-openmp 2019.4 245

mkl 2019.4 245

mkl-service 2.3.0 py37hb782905_0

mkl_fft 1.0.14 py37h14836fe_0

mkl_random 1.1.0 py37h675688f_0

numpy 1.16.5 py37h19fb1c0_0

numpy-base 1.16.5 py37hc3f5095_0

openssl 1.1.1d he774522_3

pandas 0.25.2 py37ha925a31_0

pip 19.3.1 py37_0

python 3.7.4 h5263a28_0

python-dateutil 2.8.0 py37_0

pytz 2019.3 py_0

setuptools 41.4.0 py37_0

six 1.12.0 py37_0

sqlite 3.30.0 he774522_0

vc 14.1 h0510ff6_4

vs2015_runtime 14.16.27012 hf0eaf9b_0

wheel 0.33.6 py37_0

wincertstore 0.2 py37_0

[mlangiu]

Realized I wasn't running python but ipython, probably with an old version.
conda install ipython solved this problem for me.

[boardtc]

I did a conda update pandas at the anaconda prompt today to update from 0.23.x to 0.25.3 and now I get this error in Spyder importing pandas.
pandas\compat\_optional.py", line 48, in _get_version raise ImportError("Can't determine version for {}".format(module.__name__))
ImportError: Can't determine version for bottleneck

[adamdbenson]

I had the same message but found installing it [conda|pip] install Bottleneck fixed it

[kknjio]

I solved it using conda install --all.