diff --git a/.gitignore b/.gitignore
index b81def0..0df7b3b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # Config
 config.py
+baller.py 
 
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/src/Assignment.py b/src/Assignment.py
index 18e945b..5fc575f 100644
--- a/src/Assignment.py
+++ b/src/Assignment.py
@@ -1,25 +1,30 @@
 # Module to handle each assignment (most difficult part)
 
-from Course import Course
-from File import File
-from Submission import Submission
+from Downloadable import Downloadable
 from Base import Base
 from Exercise import Exercise
+from requests import Session
 
 class Assignment(Base):
-  def __init__(self, url:str, name:str, session:Session, parent:Course):
+  def __init__(self, url:str, name:str, session:Session, parent):
     super().__init__()
-    self.files = self.files
+    self.download = Downloadable(url, name, session, self)
 
   def __str__(self):
-    return f"Assignment {self.name} in course {self.parent.name}"
+    return f"Assignment {self.name} in course {self.parent.name}"  
 
-  
-  def getSubmissions(self) -> Submission:
-    pass
+  def getExercises(self) -> list[Exercise]:
+    # Find li large
+    ul = self.soup.find('ul', class_='round')
 
-  def getExercises(self) -> list[Excercise]:
-    pass
+    # Turn each li to an exercise instance
+    return self.liLargeToExercises(ul, self.session, self)
   
   def getExercise(self, name:str) -> Exercise:
-    pass
\ No newline at end of file
+    # Get the exercise
+    r = self.session.get(self.url)
+    soup = BeautifulSoup(r.text, 'lxml')
+    # Search by name
+    exercise = soup.find('a', text=name)
+    # Get the url and transform it into an exercise object
+    return Exercise(url=exercise['href'], name=name, session=self.session, assignment=self)
\ No newline at end of file
diff --git a/src/Base.py b/src/Base.py
index d55f3cc..bad12ca 100644
--- a/src/Base.py
+++ b/src/Base.py
@@ -1,10 +1,71 @@
 # Noticed there's a similar pattern in the classes, so I'm going to create a base class for them
 
+# classes that inherit from Base:
+# - Course
+# - Assignment
+# - Exercise
 from requests import Session
+from bs4 import BeautifulSoup
 
-class Thing:
-  def __init__(url:str, name:str, session:Session, parent:Class):
+class Base:
+  def __init__(self, url:str, name:str, session:Session, parent):
     self.url = url
     self.name = name
     self.session = session
-    self.parent = parent
\ No newline at end of file
+    self.parent = parent
+ 
+  def __parseCfgBlock(self, div:BeautifulSoup) -> dict:
+    # We assume that the div is a submission with class "cfg-container round"
+    # Put each key and value in a dictionary
+    # The key is a span with a class "cfg-key"
+    # The value is a span with a class "cfg-val"
+
+    # Get the key and value spans
+    keys = div.find_all('span', class_="cfg-key")
+    values = div.find_all('span', class_="cfg-val")
+
+    # Create a dictionary
+    submission = {}
+    
+    # Put each key and value in the dictionary
+    for i in range(len(keys)):
+      submission[keys[i].text] = values[i].text
+    
+    return submission 
+  
+  def getSubmissions(self):
+    # We change the url where course becomes stats
+    url = self.url.replace("course", "stats")
+    r = self.session.get(url)
+
+    # Get each div with class "cfg-container round"
+    soup = BeautifulSoup(r.text, 'lxml')
+    divs = soup.find_all('div', class_="cfg-container round")
+
+    # The first one is an overview, the next ones are the submissions
+    submissions = []
+    for div in divs[1:]:
+      submissions.append(self.__parseCfgBlock(div))
+    return self.__parseCfgBlock(divs[0]), submissions
+
+  def liLargeToAssignments(self, ul:BeautifulSoup) -> list:
+    # Assume that ul is the block surrounding the li elements
+    # Get all the li elements
+    lis = ul.find_all('li', class_='large')
+    # Turn each to an assignment instance
+    assignments = [] 
+    for li in lis:
+      assignments.append(Base(li.a['href'], li.a.text, self.session, self.parent))
+    return assignments
+
+  def liLargeToExercises(self, ul:BeautifulSoup) -> list:
+    # Assume that ul is the block surrounding the li elements
+    # Get all the li elements
+    lis = ul.find_all('li', class_='large')
+    # Turn each to an exercise instance
+    exercises = []
+    for li in lis:
+      exercises.append(Base(li.a['href'], li.a.text, self.session, self.parent))
+    return exercises
+
+  
\ No newline at end of file
diff --git a/src/Course.py b/src/Course.py
index 4f6d07a..15a1b57 100644
--- a/src/Course.py
+++ b/src/Course.py
@@ -1,28 +1,25 @@
 # Class to handle courses
 from bs4 import BeautifulSoup
 from requests import Session
-from Year import Year
 from Assignment import Assignment
 import re
 from Base import Base
+from exceptions.CourseUnavailable import CourseUnavailable
 
 class Course(Base):
-  def __init__(url:str, name:str, session:Session, parent:Year):
-    super().__init__()
-    self.url = self.__constructURL("name")
+  # Extend the Base class init
+  def __init__(self, url:str, name:str, session:Session, parent):
+    super().__init__(url, name, session, parent)
     self.assignments = []
+    self.__courseAvailable(self.session.get(self.url))
 
   def __str__(self):
     return f"Course {self.name} in year {self.parent.year}"
-
-  def __constructURL(self, name:str):
-    # We have to find the name in the page and find its corresponding url
-    r = self.session.get(url)
-    soup = BeautifulSoup(r.text, 'lxml')
-    # Find the course
-    course = soup.find('a', text=self.name)
-    # Get the url
-    return course['href']
+  
+  def __courseAvailable(self, r):
+    # Check if we got an error
+    if "Something went wrong" in r.text:
+      raise CourseUnavailable()
   
   @property
   def courseInfo(self):
@@ -55,22 +52,14 @@ class Course(Base):
     # For each link in the course page, get the assignment
     r = self.session.get(self.url)
     soup = BeautifulSoup(r.text, 'lxml')
-    # Find the assignments, they are in <li class="large">
-    assignments = soup.find_all('li', class_='large')
+    # Find the big ul
+    print(soup)
+    section = soup.find('div', class_="ass-children")
+    ul = section.find('ul', class_='round')
     
-    # FIXME: They sometimes put other stuff in these li's, so we have to filter them out
-
-    # Create assignment object for each and store them in the class
-    for assignment in assignments:
-      # Get the name
-      name = assignment.find('a').text
-      # Get the url
-      url = assignment.find('a')['href']
-      # Create the object
-      self.assignments.append(Assignment(url=url, name=name, session=self.session, course=self))
-    
-
-  def getGrades(self):
-    pass
-
-  
\ No newline at end of file
+    # IDEA: They sometimes put other stuff in these li's, so we have to filter them out
+    print(ul)
+    print(type(ul))
+    # Transform them into Assignment objects
+    # I want to call the __liLargeToAssignments method from the Base class
+    return self.liLargeToAssignments(ul)
\ No newline at end of file
diff --git a/src/Downloadable.py b/src/Downloadable.py
index 99d159d..873679d 100644
--- a/src/Downloadable.py
+++ b/src/Downloadable.py
@@ -2,14 +2,15 @@
 
 from requests import Session
 from bs4 import BeautifulSoup
+from Base import Base
 
-class Downloadable:
-  def __init__(self, session:Session, parent:Class):
+class Downloadable(Base):
+  def __init__(self, session:Session, parent):
     self.session = session
     self.parent = parent
     
   # File handling
-  def __findFile(self, name:str) -> File:
+  def __findFile(self, name:str):
     # Get the file by name
     for file in self.files:
       if file.name == name:
@@ -17,15 +18,26 @@ class Downloadable:
     return None
 
   @property
-  def files(self) -> list[File]:
+  def files(self) -> list:
     # Create a list of files
-    # They are all in a span with class "cfg-val"
+    # They are all links in a span with class "cfg-val"
     r = self.session.get(self.url)
     soup = BeautifulSoup(r.text, 'lxml')
-    spans = soup.find_all('span', class_="cfg-val")
-    # Get the links and names of the files, create a File object for each
-    files = [File(url=a['href'], name=a.text, session=self.session, parent=self) for a in spans]
-  return files
+    # Make sure we only get the ones that have a link
+    # We parse the cfg and check for the key "Downloads"
+    cfg = soup.find('div', class_='cfg-container round')
+    cfg = self.__parseCfgBlock(cfg)
+    # Get the downloads
+    downloads = cfg.get("Downloads", None)
+    if downloads == None:
+      return []
+    # Get the links
+    links = downloads.find_all('a')
+    files = []
+    for link in links:
+      files.append(File(link['href'], link.text, self.session, self))
+    
+    return files
 
   def download(self, filename:str) -> str:
     # Download the file
diff --git a/src/Exercise.py b/src/Exercise.py
index 5a9c9e8..2f171fb 100644
--- a/src/Exercise.py
+++ b/src/Exercise.py
@@ -1,5 +1,71 @@
 from Base import Base
+from Downloadable import Downloadable
+from requests import Session
+
+from time import sleep
+
 
 class Exercise(Base):
-  //TODO: Implement
+  def __init__(self, url:str, name:str, session:Session, parent):
+    super().__init__()
+    self.download = Downloadable(url, name, session, self)
+
+  def __str__(self):
+    return f"Exercise {self.name} in assignment {self.parent.name}"
+
+  # IDEA : Make this async, so we don't have to wait for the whole output to load
+  def submit(self, file:str, comment:str) -> str:
+    # Submit a file
+    # The form is in the page with class "cfg-container round"
+    # The form is a POST request to the url with the file and the comment
+    # The url looks like this: https://themis.housing.rug.nl/submit/{year}/{course}/{assignment}/{exercise}?_csrf={session_csrf}&sudo={username}
+    # The current url looks like: https://themis.housing.rug.nl/course/{year}/{course}/{assignment}/{exercise}
+    # The request should contain the contents of the file
+
+    # Get the url
+    url = self.url.replace("course", "submit")
+    # Get the csrf token
+    csrf = self.session.cookies['_csrf']
+    # Get the username
+    username = self.session.cookies['username']
+    
+    # Open the file
+    with open(file, 'rb') as f:
+      # Submit the file
+      # After submission it will 302 to the current submission page
+      r = self.session.post(url, files={'file': f}, data={'comment': comment, '_csrf': csrf, 'sudo': username})
+      
+      # Follow the redirect and repeatedly send get requests to the page
+      
+      # We have a table which represents the test cases. The program should wait until all the test cases are done
+      # The test case is done when all of the elements in the table are not none
+      # The element which showcases this for each <tr class="sub-casetop">
+      # is the class in there. if it is "queued" it is still running.
+
+      # Get the url
+      url = r.url
+      # Get the page
+      r = self.session.get(url)
+      # Get the soup
+      soup = BeautifulSoup(r.text, 'lxml')
+      # Get the table
+      table = soup.find('table')
+      # Get the rows
+      rows = table.find_all('tr', class_='sub-casetop')
+      # Get the status
+      status = [row.find('td', class_='status').text for row in rows]
+      # Wait until all the status are not queued
+      while "queued" in status:
+        # Wait a bit
+        sleep(1)
+        # Get the page
+        r = self.session.get(url)
+        # Get the soup
+        soup = BeautifulSoup(r.text, 'lxml')
+        # Get the table
+        table = soup.find('table')
+        # Get the rows
+        rows = table.find_all('tr', class_='sub-casetop')
+
+
     pass
\ No newline at end of file
diff --git a/src/File.py b/src/File.py
deleted file mode 100644
index b4d1ba7..0000000
--- a/src/File.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# Module to handle files
-from Base import Base
-from Downloadable import Downloadable
-from requests import Session
-
-class File(Base):
-  def __init__(self, url:str, name:str, session:Session, parent:Downloadable):
-    super().__init__()
-
-  def __str__(self):
-    return f"File {self.name} for parent of Downloadable {self.parent.parent.name}"
-
-  # I know this is reduntant, but how can you have a file class without a download()
-  def download(self) -> str:
-    r = self.session.get(self.url, stream=True)
-    with open(self.name, 'wb') as f:
-      for chunk in r.iter_content(chunk_size=1024):
-        if chunk:
-          f.write(chunk)
-    return file.name
-
-  def __eq__(self, other:File) -> bool:
-    return self.name == other.name
\ No newline at end of file
diff --git a/src/Themis.py b/src/Themis.py
index 7a23b7c..d01ef3e 100644
--- a/src/Themis.py
+++ b/src/Themis.py
@@ -1,14 +1,70 @@
-from login import login
 from Year import Year
+import urllib3
+from requests import Session
+from bs4 import BeautifulSoup
+
+# Disable warnings
+urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 
 class Themis:
-  def __init__(self):
-    self.session = login()
+  def __init__(self,user:str, passwd:str):
+    self.session = self.login(user,passwd)
     self.years = []
+    self.url = "https://themis.housing.rug.nl/course/"
 
-  def getYears(self):
-    pass
+  def login(self, user, passwd):
+    headers = {
+      "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chromium/80.0.3987.160 Chrome/80.0.3987.163 Safari/537.36"
+    }
 
-  def getYear(self, end:int):
-    pass
+    data = {
+      "user": user,
+      "password":passwd,
+      "null": None
+    }
+    
+    with Session() as s:
+      url = 'https://themis.housing.rug.nl/log/in'
+      r = s.get(url,headers=headers,verify=False)
+      soup = BeautifulSoup(r.text, 'lxml')
 
+      # get the csrf token and add it to payload
+      csrfToken = soup.find('input',attrs = {'name':'_csrf'})['value']
+      data['_csrf'] = csrfToken
+
+      # Login
+      r = s.post(url,data=data,headers = headers)
+      
+      # check if login was successful
+      log_out = "Welcome, logged in as" in r.text
+      if not log_out:
+        raise Exception(f"Login for user {user} failed")
+    
+    return s
+
+
+  def getYear(self, start:int, end:int):
+    # Get the current year
+    return Year(self.session, self, start, end)
+
+  def allYears(self): 
+    # All of them are in a big ul at the beginning of the page
+    r = self.session.get(self.url)
+    soup = BeautifulSoup(r.text, 'lxml')
+    ul = soup.find('ul', class_='round')
+    lis = ul.find_all('li', class_='large')
+    years = []
+    for li in lis:
+      # format: 2019-2020
+      year = li.a.text.split("-")
+      years.append(Year(self.session, self, int(year[0]), int(year[1])))
+
+    return years  # Return a list of year objects
+
+
+# This is the main file, so we have to run the main function
+
+def main():
+  themis = Themis()
+  year = themis.getYear(2019, 2020)
+  print(year.getCourses())
diff --git a/src/Year.py b/src/Year.py
index ad47489..126d2d9 100644
--- a/src/Year.py
+++ b/src/Year.py
@@ -1,29 +1,52 @@
 # Year class to represent an academic year
 
 from bs4 import BeautifulSoup
-import selenium
-from login import login
 from Course import Course
-from Themis import Themis
-from Base import Base
+from requests import Session
+from exceptions.CourseUnavailable import CourseUnavailable
 
-class Year(Base):
-  def __init__(name:str, session:Session, parent:Themis, end_year:int):
-    super().__init__()
-    self.start = end_year - 1
+class Year:
+  def __init__(self, session:Session, parent, start_year:int, end_year:int):
+    self.start = start_year
     self.year = end_year
-    self.url = __constructUrl()
+    self.session = session
+    self.url = self.__constructUrl()
 
   # Method to set the url
   def __constructUrl(self):
-    return f"https://themis.housing.rug.nl/{self.start}-{self.year}"
+    return f"https://themis.housing.rug.nl/course/{self.start}-{self.year}"
 
   # Method to get the courses of the year
-  def getCourses(self) -> list[Course]:
+  def getCourses(self, errors:bool=False) -> list[Course]:
+    # lis in a big ul 
+    r = self.session.get(self.url)
+    soup = BeautifulSoup(r.text, 'lxml')
+    lis = soup.find_all('li', class_='large')
     courses = []
-    # TODO: Logic to get all courses
+    for li in lis:
+      try:
+        courses.append(
+          Course(
+            self.url + li.a['href'],
+            li.a.text,
+            self.session,
+            self
+          )
+        )
+      except CourseUnavailable:
+        if errors:
+          raise CourseUnavailable(f"Course {li.a.text} in year {self.start}-{self.year} is not available")
+        else:
+          pass
+      
+      
     return courses
 
   def getCourse(self, name:str) -> Course:
-    #TODO: Implement
-    pass
\ No newline at end of file
+    # Get the course
+    r = self.session.get(self.url)
+    soup = BeautifulSoup(r.text, 'lxml')
+    # Search by name
+    course = soup.find('a', text=name)
+    # Get the url and transform it into a course object
+    return Course(url=course['href'], name=name, session=self.session, year=self)
\ No newline at end of file
diff --git a/src/config.py b/src/config.py
deleted file mode 100644
index 355a4a5..0000000
--- a/src/config.py
+++ /dev/null
@@ -1,5 +0,0 @@
-username = "<s-number>"
-password = "<password>"
-
-if __name__ == "__main__":
-  print("Do not run this module like this. Just set the values.")
\ No newline at end of file
diff --git a/src/exceptions/CourseUnavailable.py b/src/exceptions/CourseUnavailable.py
new file mode 100644
index 0000000..465bf5a
--- /dev/null
+++ b/src/exceptions/CourseUnavailable.py
@@ -0,0 +1,4 @@
+class CourseUnavailable(Exception):
+  def __init__(self, message:str="Error in course"):
+    self.message = message
+    super().__init__(self.message)
\ No newline at end of file
diff --git a/src/login.py b/src/login.py
deleted file mode 100644
index bed513d..0000000
--- a/src/login.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# Module to handle login
-# URL to login: https://themis.housing.rug.nl/log/in
-# POST request which contains the following data:
-# - username
-# - password
-# - null
-
-from requests import Session
-from bs4 import BeautifulSoup
-from config import username, password
-import urllib3
-
-# Disable warnings
-urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
-
-# Function to login to Themis
-def login(user, passwd):
-  headers = {
-    "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chromium/80.0.3987.160 Chrome/80.0.3987.163 Safari/537.36"
- }
-
-  data = {
-    "user": username,
-    "password":password,
-    "null": None
-  }
-  
-  with Session() as s:
-    url = 'https://themis.housing.rug.nl/log/in'
-    r = s.get(url,headers=headers,verify=False)
-    soup = BeautifulSoup(r.text, 'lxml')
-
-    # get the csrf token and add it to payload
-    csrfToken = soup.find('input',attrs = {'name':'_csrf'})['value']
-    data['_csrf'] = csrfToken
-
-    # Login
-    r = s.post(url,data=data,headers = headers)
-    
-    # check if login was successful
-    log_out = "Welcome, logged in as" in r.text
-    if log_out:
-      print(f"Login for user {username} successful")
-    else:
-      print("Login failed")
-      return None 
-  
-  return s
-
-
-if __name__ == "__main__":
-  print("Do not run this module like this. Used to give a logged in session.")
\ No newline at end of file