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ModuleNotFoundError: No module named 'data_management' in PyCharm

In github there are four py Data which I put on my PyCharm. When I run main.py I get this message:
/Users/Armut/Desktop/High_D/Coursera/bin/python /Users/Armut/Desktop/High_D/main.py
Traceback (most recent call last):
File "/Users/Armut/Desktop/High_D/main.py", line 6, in <module>
from data_management.read_csv import *
ModuleNotFoundError: No module named 'data_management'
Here is a screenshots:
Can someone help, what I am doing wrong or how can I fix it?
EDIT (Put folders):
/Users/Armut/Desktop/High_D/Coursera/bin/python /Users/Armut/Desktop/High_D/main.py
WARNING:root:Failed to import geometry msgs in rigid_transformations.py.
WARNING:root:Failed to import ros dependencies in rigid_transforms.py
WARNING:root:autolab_core not installed as catkin package, RigidTransform ros methods will be unavailable
Traceback (most recent call last):
File "/Users/Armut/Desktop/High_D/main.py", line 7, in <module>
from visualization.visualize_frame import VisualizationPlot
ModuleNotFoundError: No module named 'visualization.visualize_frame'
EDIT:
/Users/Armut/Desktop/High_D/Coursera/bin/python /Users/Armut/Desktop/High_D/src/main.py
Traceback (most recent call last):
File "/Users/Armut/Desktop/High_D/src/main.py", line 7, in <module>
from src.visualization.visualize_frame import VisualizationPlot
File "/Users/Armut/Desktop/High_D/src/visualization/visualize_frame.py", line 10, in <module>
from utils.plot_utils import DiscreteSlider
ModuleNotFoundError: No module named 'utils.plot_utils'
Edit (No errors, but I just get a blank picture):
Edit (I installed matplotlib 3.0.3 and got this):
The issue here is, that it is just a picture. If you can see there are buttons like "next". I should be able to click it so I can track it. But how does it work?

Do the following
from read_csv import *
import visualize_frame as vf
The reason why it was not working for you is because you were importing files that dont exist on your system. When you do from data_management.read_csv import *, what you are telling the Python interpreter to do is to search for a folder called data_management inside you're Coursera folder and get everything from read_csv.py.
This is the same case with visualize_frame. Since you have a flat directory structure, you dont need the folder names. You can directly import the .py files as is.
Another thing to note here is that I personally wouldn't do from read_csv import * because I will be flooding my namespace with a lot of things I probably wont use. I would rather use import read_csv as any_alias_you_like. This way I only fill my namespace with what I want by doing the following
x = any_alias_you_like.function_call()
The reason why I didn't do this with the main code solution is because I am not sure where all you are using read_csv functions and classes in your code and if that is not accounted for by prefxing the alias name properly, you will run into a multiple errors. So my advice is to identify all the funcutions/classes that you are using in read_csv.py and prefix them properly with an alias.
I also used the import statement for the visualize_frame differently. This is because, when you do a from import..., you are only partially initializing the module. However, a proper import visualize_frame will ensure that your entire module is initialized in one call and you can use everything it offers by simply prefixing the alias.
Read about the difference between from import and import... here.
Read about how Python searches for libraries here.

Run python script from another python script on linux

I'm using python 2.7 and ubuntu 16.04.
I have a simple REST server on python: file server_run.py in module1 which is importing some scripts from module2.
Now I'm writing an integration test, which is sending POST request to my server and verify that necessary action was taken by my server. Obviously, server should be up and running but I don't want to do it manually, I want to start my server (server_run.py which has also main method) from my test: server_run_test.py file in module3.
So, the task sounds very simple: I need to start one python script from another one, but I spent almost the whole day. I found a couple of solutions here, including:
script_path = "[PATH_TO_MODULE1]/server_run.py"
subprocess.Popen(['python', script_path], cwd=os.path.dirname(script_path))
But my server is not coming up, throwing the error:
Traceback (most recent call last):
File "[PATH_TO_MODULE1]/server_run.py", line 1, in <module>
from configuration.constants import *
File "[PATH_TO_MODULE2]/constants.py", line 1, in <module>
from config import *
ModuleNotFoundError: No module named 'config'
So, it looks like when I'm trying to start my server in subprocess it doesn't see imports anymore.
Do you guys have any idea how can I fix it?

Eventually, the solution was found, 2 steps were taken:
1. In each module I had an empty __init__.py file, it was changed to:
from pkgutil import extend_path
__path__ = extend_path(__path__, __name__)
__version__ = '${version}'
2. Instead of using the following syntax:
from configuration.constants import *
from configuration.config import *
config and constants were imported as:
from configuration import constants,config
and then we are using reference to them when need to get some constant.
Thanks everyone for looking into it.

Rather than running it using os module try using the import function. You will need to save in the same dictionary or a sub folder or the python installation but this seems to be the way to do it. Like this post suggests.

No module named

I have a python project with this structure: (This is not a real project, only for testing)
ImportTest
ImportPersonsTest\
ImportPerson\
ImportPerson.py
RunImportPersonTest.py
RunImportTests.py
I want this tests to call each other. E.g :
RunImportTests.py calls a method in RunImportPersonTest.py, and RunImportPersonTest.py calls a method ImportPerson.py
RunImportPersonTest:
import os
import sys
sys.path.insert(0, os.getcwd() + "../../../")
from ImportPerson import ImportPerson
RunImportTests
import os
import sys
sys.path.insert(0, os.getcwd() + "../../")
from ImportPersonsTest import RunImportsPersonTest
I have success when I run ImportPerson.py and RunImportPersonTest.py, but when I try to run RunImportTests I get this error :
Traceback (most recent call last):
File "xxx\LiClipse Workspace\SystemTest\ImportTest\RunImportTests.py", line 4, in <module>
from ImportPersonsTest import RunImportsPersonTest
File "xxx\LiClipse Workspace\SystemTest\ImportTest\ImportPersonsTest\RunImportsPersonTest.py", line 4, in <module>
from ImportPerson import ImportPerson
ImportError: No module named 'ImportPerson'
Any suggestions?
Edit
New Structure
ImportTest
ImportPersonsTest\
ImportPerson\
ImportPerson.py
__init__.py
RunImportPersonTest.py
__init__.py
RunImportTests.py
__init__.py

Looks like you don't have any __init__.py files in your project. Python needs those files to be able to import modules from folders. The good news is, they are very easy to make: most of the time, they don't need anything in them, they just have to exist.
See: https://docs.python.org/2/tutorial/modules.html#packages

I think your use of os.getcwd() is flawed.
My guess is that you're running your program from the ImportTest directory and so your current working directory will already allow you to do the first import without any need to fix up your path. When you then try the second import, adding ".../ImportTest/../../.." or ".../ImportTest/../.." isn't helping Python find it.
To fix it either add the ImportPersonsTest directory to your path or use a suitably modified name in the import (ensuring you have your init files as already flagged) - e.g.
from ImportPersonsTest.ImportPerson import ImportPerson

There is two basic problem:
os.getcwd() as other os functions return path with no separator at the end. In fact you insert xxx\LiClipse Workspace\SystemTest\ImportTest../../../ which is not a valid path
As mention by #peter, using os.getcwd() is bad idea - it's depend on your location when you run the script. Use:
sys.path.append(os.path.dirname(__file__)) (insert recommend only at special cases)
But,
It seems that none of this caused your problem. It's only insert bad stuff to your sys.path. Your importing need to work good cause all the importing done from the self-module-dir, where python firstly search for the requested module.
I copy your package to mine machine - and both runs well!
I fix one spelling bug (RunImportsPersonTest -- RunImportPersonTest) - maybe there is other spelling problem

Python name 'os' is not defined even though it is explicitly imported

I have a module called imtools.py that contains the following function:
import os
def get_imlist(path):
return[os.path.join(path,f) for f in os.listdir(path) if f.endswith('.jpg')]
When I attempt to call the function get_imlist from the console using import imtools and imtools.get_imlist(path), I receive the following error:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "C:\...\PycharmProjects\first\imtools.py", line 5, in get_imlist
NameError: name 'os' is not defined
I'm new at Python and I must be missing something simple here, but cannot figure this out. If I define the function at the console it works fine. The specific history of this module script is as follows: initially it was written without the import os statement, then after seeing the error above the import os statement was added to the script and it was re-saved. The same console session was used to run the script before and after saving.

Based on small hints, I'm going to guess that your code didn't originally have the import os line in it but you corrected this in the source and re-imported the file.
The problem is that Python caches modules. If you import more than once, each time you get back the same module - it isn't re-read. The mistake you had when you did the first import will persist.
To re-import the imtools.py file after editing, you must use reload(imtools).

Same problem is with me I am also trying to follow the book of Programming Computer Vision with Python by Jan Erik Solem" [http://programmingcomputervision.com/]. I tried to explore on internet to see the problem but I did not find any valuable solution but I have solved this problem by my own effort.
First you just need to place the 'imtools.py' into the parent folder of where your Python is installed like C:\Python so place the file into that destination and type the following command:
from PIL import Image
from numpy import *
from imtools import *
Instead of typing the code with imtools.get_imlist() you just to remove the imtools from the code like:
get_imlist()
This may solve your problem as I had found my solution by the same technique I used.

How do I install Python module given as .py file?

I do realize this is a noobish question, but I've been trying for an hour and I can't get it right.
So, I have a Python script which I'd like to modify a bit and play around with as a Python beginner. However, at the very beginning of the script, there's this:
from priodict import priority_dict
Now, I have a file named priodict.py that came with the script. But how do I make it available to the script so it can be included like that?
The Python manual has pages and pages on installing modules, but they all seem to refer to "packages" which are to be placed in certain directories etc. What do I do when I have just the .py file?
I know there is probably a banale one-sentence response to this, but I'm getting frustrated and I'm short on time so I decided to take the easy way out and ask Stack overflow about it.
It seems that, if I don't have the priodict.py file, I get this error:
Traceback (most recent call last):
File "C:\Python27\scripts\dijksta.py", line 192, in <module>
main()
File "C:\Python27\scripts\dijksta.py", line 185, in main
D, _ = dijkstra(G, 1, v)
File "C:\Python27\scripts\dijksta.py", line 139, in dijkstra
Q = priority_dict() # est.dist. of non-final vert.
NameError: global name 'priority_dict' is not defined
If I place the file in the same directory as my script, I get this error:
Traceback (most recent call last):
File "C:\Python27\scripts\dijksta.py", line 2, in <module>
from priodict import priority_dict
ImportError: cannot import name priority_dict
These are the files in question:
https://github.com/kqdtran/ADA1/tree/master/dijkstra

Place the file in the same directory, and that will get you started. Seems you've figured out that much. If all you have is a .py file, that's what you're usually expected to do.
If you're unable to import a name from a module, it usually means that name doesn't exist in that module. Try:
import priodict
print dir(priodict)
Is priority_dict listed? If not, is there a similarly named attribute that might be what you're looking for? It may just be that the instructions given you were misspelled, like the _ wasn't needed.
If it fails on the import line, it may be that there's an error in the module code itself that must be corrected first. you'll get an error telling you roughly where it is.