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ImportError: cannot import name 'combined_rule_sentence_segmenter'

I'm facing error while importing "import en_ner_bc5cdr_md"
import scispacy
import spacy
from spacy import displacy
from collections import Counter
import en_core_web_sm
import en_ner_bc5cdr_md
import en_core_sci_sm
import en_core_sci_md
import en_ner_bionlp13cg_md
from scispacy.abbreviation import AbbreviationDetector
from scispacy.umls_linking import UmlsEntityLinker
from collections import OrderedDict
from pprint import pprint
Please help

You need to download the model first, try
!pip install https://s3-us-west-2.amazonaws.com/ai2-s2-scispacy/releases/v0.5.1/en_ner_bc5cdr_md-0.5.1.tar.gz

ModuleNotFoundError: No module named 'Session'

When I run my python script file.py, I get an error ModuleNotFoundError: No module named 'Session'.
The imports on my script:
import os
import sys
import tensorflow as tf
import numpy as np
import random
import time
import requests
from requests import Request, Session
from flask_session import Session
from flask_session.__init__ import Session
import Session
from setup_inception import ImageNet, InceptionModel

You should not use from flask_session import Session
Instead use from flask_session.__init__ import Session

I'm sorry for the late answer, I have solved the problem with command:
import tensorflow.compat.v1 as tf
instead of
import tensorflow as tf
because I 'm using tensorflow 2.4

No module named 'ray.rllib.agents.ppo.ppo_policy'

I have this code:
from copy import deepcopy
import json
import ray
try:
from ray.rllib.agents.agent import get_agent_class
except ImportError:
from ray.rllib.agents.registry import get_agent_class
from ray.rllib.agents.ppo.ppo_policy import PPOTFPolicy
from ray import tune
from ray.tune.registry import register_env
from ray.tune import run_experiments
I am getting the error:
No module named 'ray.rllib.agents.ppo.ppo_policy'
I tried:
pip install ray;

I re installed the system and reconfigured the environment to solve this problem

Python to exe with pyinstaller using anaconda is a huge file

When i do this imports and i create a exe file with pyinstaller. The dist folder is huge (+900Mbs). How can i reduce this?
import queue
import threading
import time
import dateutil.parser
import getpass
import json
import pandas as pd
import pickle
import pprint
import requests
import sys
import urllib3
import xlrd as xl
import xlwings as xw
import PySimpleGUI as sg
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
from pathlib import Path
from openpyxl import load_workbook, cell
from pandas import ExcelWriter
from datetime import datetime, date
from oauthlib.oauth2 import BackendApplicationClient
from requests_oauthlib import OAuth2Session

Question on importing library's into python3

I'm learning Python and the imports that have accumulated whilst developing my app seem like I'm repeating imports. Please can someone advise me on development practices.
from pathlib import Path
from urllib.request import urlopen
from gi.repository import Gtk, Gio
from gi.repository import GLib as glib
from gtk_assistant import AssistantApp
import urllib.request
import urllib.error
import xml.etree.ElementTree as ET
import json
import gi
import sys
import os
import hashlib

You can group imports like this if you want:
from urllib import request, error
from xml.etree import ElementTree as ET
import json, gi, sys, os, hashlib
However, the pep8 style guide says you should have them on seperate lines so the way you did it is fine