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Unable to import module 'lambda_function': No module named 'psycopg2._psycopg aws lambda function

I have installed the psycopg2 with this command in my package folder :
pip install --target ./package psycopg2 # Or
pip install -t ./package psycopg2
now psycopg2 module is in my package and I have created the zip and upload it in AWS lambda.
In my local sprint is working fine but on AWS lambda it was not working.
It shows me error
{
"errorMessage": "Unable to import module 'lambda_function': No module named 'psycopg2._psycopg'",
"errorType": "Runtime.ImportModuleError",
"stackTrace": []
}
my lambda code is
import psycopg2
def lambda_handler():
print('hello')
my all other modules are working fine

I faced the same issue as I created the virtual env for layers on Mac. to solve this, I used the below command.
pip install --platform=manylinux1_x86_64 --only-binary=:all:
psycopg2-binary --target "your lambda layer path"
in my case it was:
lambda/layer/python/lib/python3.8/site-packages
You can also use --upgrade if some of the required libs are already there.

add this lib
pip install aws-psycopg2

In my case, I had to add psycopg2-binary to the requirements.txt

Import ldap in python gives gives "DLL load failed" error

I'm using the "import ldap" in a python code. This is on a windows 10 machine.
I installed the python-ldap module
pip3 install python-ldap
Installed the dependencies based on the instructions at Python Can't install packages
Also resolved all the pip deployment issues based on Installing python-ldap in a virtualenv on Windows
I'm now getting the following error when executing the import ldap statement. am I missing something here? Any ideas to resolve it?
thon39\site-packages\ldap\__init__.py", line 34, in <module>
import _ldap
ImportError: DLL load failed while importing _ldap: The specified module could not be found.

Visit the unofficial Python binaries page:
https://www.lfd.uci.edu/~gohlke/pythonlibs/#python-ldap
Download the appropriate WHL package for your system.
For example, if you're using Python 3.8 on an x64 system, download python_ldap‑3.3.1‑cp38‑cp38‑win_amd64.whl
(hint: do NOT download the +sasl version unless you have the Cyrus SASL code running on your system...)
Start the VirtualEnv for your project, if you're using one (C:\Users\youruser\.virtualenv\YourVirtualEnv\Scripts\activate.bat) -- if you're not, skip this step.
Then run pip3 install C:\Path\To\python_ldap_x.x.x-cpXX-cpXX-winXX.whl and this should install the Python DLL (pyd) file for you.

Python says "No Module named SALib" despite successful install in cmd

I'm trying to perform a sensitivity analysis using the SALib module in Python(Spyder) and I installed it using "pip install SALib" in cmd prompt. The install was performed successfully however python says "No module named SALib" when I run the command "import SALib".
What am I doing wrong?

Package already installed but getting error like No module name "plspm" in Python?

I have started getting this error for a "plspm" module in python which is part of R library after I 'conda install plspm' on my windows 10 OS. Installation has been done properly but i could not able to import plspm in python getting "No module" error. Please anyone help me to resolve.Thanks.
version of r-plspm is -0.4.9
needed packages already installed(scipy,skit-learn,pandas,numpy,statsmodule).
command used to install:
conda install -c conda-forge r-plspm
Screen shot of installed plspm:
Error:

Pycharm with virtualenv, use Shelve module: No module named _bsddb

I receive the error "No module named _bsddb".
I installed berkeley-db4 using Brew.
I load up the virtualenv and use "pip install bsddb3 --install-option="--berkeley-db='/usr/local/opt/berkeley-db4'" but I can't get passed this in any way I can think of:
Collecting bsddb3
Using cached bsddb3-6.1.1.tar.gz
Complete output from command python setup.py egg_info:
Can't find a local Berkeley DB installation.
(suggestion: try the --berkeley-db=/path/to/bsddb option)
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/g6/j96dym1x0jx9ydrdkfs4dhnr0000gn/T/pip-build-676fDz/bsddb3

This is probably OS X only, because the shipped Python has something broken regarding berkeley-db and/or bsddb.
The solution:
Install brew and use brew to install python
After this 'which python' should pount to '/usr/local/bin/python'
Create a new virtualenv using Terminal OUTSIDE OF PYCHARM
In Pycharm's Project Interpreter settings choose 'Add Local'
Select the python bin inside your virtualenv directory