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Issues importing pymssql in Python3 while using conda environment

I am having trouble importing a library called pymssql.
I have read previous solutions regarding this issue on stack overflow. The following are the solutions that did not work:
Error importing pymssql
import pymssql Unicode DecodeError in windows 7
I am running a conda virtual environment with Python 3.7.9. The following is the output when I run python in the terminal.
Python 3.7.9 (default, Aug 31 2020, 07:22:35)
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
So, this confirmed that I was using the correct Python version. Next, I tried to import a library called pymssql.
This looked like:
>>> import pymssql
This returned an error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/anaconda3/envs/conda_env/lib/python3.7/site-packages/pymssql/__init__.py", line 3, in <module>
from ._pymssql import *
File "src/pymssql/_pymssql.pyx", line 1, in init pymssql._pymssql
ImportError: dlopen(/usr/local/anaconda3/envs/conda_env/lib/python3.7/site-packages/pymssql/_mssql.cpython-37m-darwin.so, 2): Symbol not found: _iconv
Referenced from: /usr/local/anaconda3/envs/conda_env/lib/python3.7/site-packages/pymssql/_mssql.cpython-37m-darwin.so
Expected in: flat namespace
in /usr/local/anaconda3/envs/conda_env/lib/python3.7/site-packages/pymssql/_mssql.cpython-37m-darwin.so
>>>
I have tried conda install pymssql and pip install pymssql. Neither of these solved the issue.

Howto install psycopg2 in virtualenv with mx support?

I have a virtualenv venv where I installed mx-base and psycopg2 with pip:
$ pip freeze | grep "psyco\|mx"
egenix-mx-base==3.2.8
psycopg2==2.6
The basics of psycopg2 works but when using extensions I get exceptions like this:
Traceback (most recent call last):
File "/my_proj/my_code.py", line 32, in <module>
register_types()
File "/my_proj/my_code.py", line 28, in register_types
psycopg2.extensions.register_type(psycopg2._psycopg.MXDATETIME)
AttributeError: 'module' object has no attribute 'MXDATETIME'
Or:
ulf#kalla:~(0)(venv)$ python
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
>>> #Use mx.DateTime instead of pythons datetime, for compability reasons.
... psycopg2.extensions.register_type(psycopg2._psycopg.MXDATETIME)
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
AttributeError: 'module' object has no attribute 'MXDATETIME'
>>>
It seems that the installed version of psycopg2 lacks the mx-support.
How could I fix this?

You will probably need to build psycopg2 on your own, download the tar.gz, unzip, and then find the setup.cfg file, modify the mx_include parameter to be /lib/python2.7/site-packages/mx/DateTime/mxDateTime and then
python setup.py build_ext install

Cannot import PYMC

When I try to import PYMC installed with pip, enpgk or the canopy GUI package manager, I tried all of them and without success.
Enthought Canopy Python 2.7.9 | 64-bit | (default, Jun 30 2015, 22:40:22)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-55)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pymc
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/renanpc/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/pymc/__init__.py", line 30, in <module>
from .CommonDeterministics import *
File "/home/renanpc/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/pymc/CommonDeterministics.py", line 21, in <module>
from .utils import safe_len, stukel_logit, stukel_invlogit, logit, invlogit, value, find_element
File "/home/renanpc/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/pymc/utils.py", line 14, in <module>
from . import flib
ImportError: libgfortran.so.1: cannot open shared object file: No such file or directory
I tried to install GFORTRAN with :
~$ sudo apt-get install gfortran-4.6
but I still get the same error.
(there are other questions very similar indeed, but usually the answer has to do with Anaconda and I'm using Canopy)
Any idea of what is going on ? I can import other packages.

SciPy ImportError on Python 2.6 Anaconda

I developed a Python package using Python 2.7 and 3.4, and now I'm trying to test it for 2.6 compatibility. So in Anaconda, I made a new conda environment for Python 2.6:
conda create -n python2.6 python=2.6.9 numpy scipy
But now, when I try to import some stuff from scipy:
$ python
Python 2.6.9 |Continuum Analytics, Inc.| (unknown, Jan 10 2014, 13:33:57)
[GCC 4.2.1 (Apple Inc. build 5577)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import scipy.sparse
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/__init__.py", line 212, in <module>
from .csr import *
File "/Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/csr.py", line 13, in <module>
from ._sparsetools import csr_tocsc, csr_tobsr, csr_count_blocks, \
ImportError: dlopen(/Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/_sparsetools.so, 2): Symbol not found: __ZNSaIcEC1Ev
Referenced from: /Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/_sparsetools.so
Expected in: dynamic lookup
Does anybody know a fix or a workaround? I'm using Mac OS X 10.9. The import works fine on 2.7 and 3.4.

ImportError: cannot import name Library, during installing PyLucene

I have spent 5 hours to fix this problem but I can't. During installing PyLucene with http://lucene.apache.org/pylucene/install.htmt , I faced with a error like follwing.
sanghee-m:jcc sanghee$ python setup.py build
found JAVAFRAMEWORKS = /System/Library/Frameworks/JavaVM.framework
Traceback (most recent call last):
File "setup.py", line 398, in <module>
main('--debug' in sys.argv)
File "setup.py", line 306, in main
from setuptools import Library
ImportError: cannot import name Library
sanghee-m:jcc sanghee$ python setup.py build --debug
found JAVAFRAMEWORKS = /System/Library/Frameworks/JavaVM.framework
Traceback (most recent call last):
File "setup.py", line 398, in <module>
main('--debug' in sys.argv)
File "setup.py", line 306, in main
from setuptools import Library
ImportError: cannot import name Library
sanghee-m:jcc sanghee$
I can't find Library also. How can I solve this problme? Can you let me know where should I check when I get this kind of error?
Also, I installed setuptools 1.1.6 and used pylucene-4.4.0-1.
sanghee-m:jcc sanghee$ python
Python 2.7.5 (v2.7.5:ab05e7dd2788, May 13 2013, 13:18:45)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import setuptools

I am trying to compile JCC under windows, and I found that the latest version of setuptools, 1.1.6, gives the import error you reported. However with version 0.6c11 the Library module is found.
Edit: 1.1.3 also works.

it may seem like a stupid question but do you have the setuptools installed?
https://pypi.python.org/pypi/setuptools/0.6c11