James Stamp

James Stamp

Location Liverpool UK

Achievements

Activity

  • James Stamp made a comment
    Protect the AWS Root User

    Very important advice

  • James Stamp replied to James Stamp
    Exercise: Ebook Work | Turtles

    Thanks @ClintD .

  • James Stamp made a comment
    Exercise: Ebook Work | Turtles

    I think the Ebook Work Turtles link above is not completely correct as it is trying to open the course py4e-int instead of fl-py4e

    The correct link is
    https://runestone.academy/runestone/books/published/fl-py4e/turtles/names4turtles.html

  • James Stamp made a comment
    Introduce Yourself

    I hope to gain more understanding of the services available in AWS. The options available can be quite overwhelming without some guidance

  • James Stamp made a comment
    Wrap-up

    The importance of getting the presentation of the data analysis correct in order to get the message across to the target audience. Seaborn will be really helpful in achieving this.

    I would like to learn a lot more about the abilities of Matplotlib and Seaborn

  • James Stamp made a comment
    Practical Activity: Customising Seaborn plots

    import pandas as pd
    import seaborn as sns
    import matplotlib.pyplot as plt

    filename = 'penguins.csv'
    data_frame = pd.read_csv(filename)
    sns.set(rc={'figure.figsize': (6, 6)})
    sns.set_style('whitegrid')
    sns.set_context('paper')

    ax = sns.scatterplot(
    data=data_frame,
    x='bill_length_mm',
    y='flipper_length_mm',
    hue='species',
    ...

  • James Stamp made a comment
    Practical Activity: Create a scatter plot in Seaborn

    import pandas as pd
    import seaborn as sns
    import matplotlib.pyplot as plt

    filename = 'climate.csv'
    df = pd.read_csv(filename)
    sns.scatterplot(data=df, x='City', y='Temperature')

    Correlation between City and Temperature is low

  • James Stamp made a comment
    Week's objectives

    A very interesting article. Data storytelling has often felt like an after-thought in other data analysis courses I have took part in.

  • James Stamp made a comment
    Wrap-up

    Still getting to grips with what is possible with Pandas. I'd like to learn a lot more about the library as it appears to be a very useful and powerful analysis tool.

  • James Stamp made a comment
    Practical Activity: Reshape data sets in Python

    import pandas as pd
    import numpy as np
    from pandas import Series, DataFrame

    filename = '.\dataset/Brazilian-states-and-capitals.csv'
    df_flow = pd.read_csv(filename)
    ds1 = df_flow.stack()
    print(ds1.head())
    print(ds1.tail())
    ds2 = ds1.unstack()
    print(ds2.head())
    print(ds2.tail())

    1 States Acre
    Capitals Rio Branco
    2 States ...

  • James Stamp made a comment
    Practical Activity: Combine data sets in Python

    import pandas as pd
    import numpy as np
    from pandas import Series, DataFrame
    df1 = pd.read_csv(".\dataset/climate.csv")
    df2 = pd.read_csv(".\dataset/Week+2.csv")
    df3 = pd.read_csv(".\dataset/Week+3.csv")
    result = pd.concat([df1, df2, df3])
    print(result)

    City Temperature Weather Year State Month Number of Fires Date Reported
    0 Rome ...

  • James Stamp made a comment
    Practical Activity: Load data from CSV file to Pandas DataFrame

    import pandas as pd
    import numpy as np
    from pandas import Series, DataFrame

    filename = ".\dataset/Brazilian-fire-dataset.csv"
    df_fire = pd.read_csv(filename)
    print(df_fire)

    Year State Month Number of Fires Date Reported
    0 1998 Acre January 0.0 1/01/1998
    1 1999 Acre January ...

  • James Stamp made a comment
    Wrap-up

    The Pandas library is really powerful. A lot of data manipulation can be achieved with only a few lines of code.

    I'd like to learn more about other functions available in the Pandas library.

  • James Stamp replied to James Stamp
    Practical Activity: Filter and select data in Pandas

    States Capitals
    0 Acre Rio Branco
    1 Alagoas Maceió
    2 Amapá Macapá
    3 Amazonas Manaus
    4 Bahia Salvador
    5 Ceará Fortaleza
    6 Distrito Federal Brasília
    7 Espírito Santo Vitória
    8 Goiás Goiânia
    9 Maranhão São...

  • James Stamp made a comment
    Practical Activity: Filter and select data in Pandas

    import pandas as pd
    import numpy as np
    from pandas import Series, DataFrame

    data = {
    'States': ['Acre', 'Alagoas', 'Amapá', 'Amazonas', 'Bahia', 'Ceará', 'Distrito Federal', 'Espírito Santo', 'Goiás', 'Maranhão'],
    'Capitals': ['Rio Branco', 'Maceió', 'Macapá', 'Manaus', 'Salvador', 'Fortaleza', 'Brasília', 'Vitória', 'Goiânia', 'São Luís'],
    ...

  • James Stamp made a comment
    Practical Activity: Create a DataFrame in Pandas

    import pandas as pd
    import numpy as np
    from pandas import Series, DataFrame

    data = {
    'states': ['Acre', 'Alagoas', 'Amapá', 'Amazonas', 'Bahia', 'Ceará', 'Distrito Federal', 'Espírito Santo', 'Goiás', 'Maranhão', 'Mato Grosso',
    'Mato Grosso do Sul', 'Minas Gerais', 'Pará', 'Paraíba', 'Paraná', 'Pernambuco', 'Piauí', 'Rio de Janeiro',...

  • James Stamp made a comment
    Practical Activity: Create a series in Pandas

    CODE:
    import pandas as pd
    import numpy as np
    from pandas import Series, DataFrame

    myDictionary = {'R': 'Red', 'P': 'Purple', 'G': 'Green', 'Y': 'Yellow', 'W': 'White', 'B': 'Black'}
    mySeries = Series(myDictionary)
    mySeries.name = 'House'

    print(mySeries)
    print(mySeries.values)
    print(mySeries.index)

    OUTPUT:
    R Red
    P Purple
    G ...

  • James Stamp made a comment
    Applying Python data structures: Create a tuple and a list

    CODE
    sales = 150, 180, 200, 90, 135, 98, 'Yet to receive'
    print(sales)
    OUTPUT
    (150, 180, 200, 90, 135, 98, 'Yet to receive')

    CODE
    sales_list = list(sales)
    sales_list.append(100)
    print(sales_list)

    OUTPUT
    [150, 180, 200, 90, 135, 98, 'Yet to receive', 100]

  • James Stamp made a comment
    Concatenate two strings

    Code:
    firstName = 'Lauren'
    middleName = 'Hurrier'
    lastName = 'Manual'
    print(firstName + ' ' + middleName + ' ' + lastName)

    Output:
    Lauren Hurrier Manual

  • James Stamp made a comment
    Assign values to variables

    fruit = ('apple', 'banana', 'grape')
    print(fruit)
    ('apple', 'banana', 'grape')

    False = "True"
    async = 1
    import = 10.5
    File "<ipython-input-7-f3ed83b179f6>", line 2
    async = 1
    ^
    SyntaxError: invalid syntax

    _False = "True"
    _async = 1
    _import = 10.5
    print(_False, _async, _import)
    True 1 10.5

  • James Stamp made a comment
    Which programming language would you choose for your data analytics requirements?

    My first choice would be Python for data mining and manipulation as it is quick to pick up and there are a number of good libraries that can be accessed. Would also SQL if any interactions with DBs are required.

  • James Stamp made a comment
    Introductions and looking ahead

    I have some computing projects that use twitter data and data from some APIs. Hoping to get a better understanding of Pandas to improve the analysis and presentation of the findings

  • James Stamp replied to James Stamp
    Sending and receiving data

    Hi @MacBowley(he/him), sorry about that. There was an extra character at the end of the link. Correct link is < https://pastebin.com/XYPK6SAx >

  • James Stamp made a comment
    Sending and receiving data

    Eventually got it working.

    Code here for server and client files here <https://pastebin.com/XYPK6SAx>

  • James Stamp made a comment
    Connecting to a socket

    Great, it worked. It is amazing how much can be achieved with only a few lines of code

  • James Stamp replied to Rob Boult
    Installing Django on PythonAnywhere

    Hi @RobBoult. Did you find a solution to this? I'm experiencing the exact same issue.

  • James Stamp made a comment
    Len Klienrock-The First Two Packets on the Internet

    A very fascinating video. Really good to see.

  • James Stamp made a comment
    Week 1 Discussion

    A very interesting week. The presentation of the material is excellent.

  • James Stamp made a comment
    Building a Simple Web Browser in Python

    Really good video. It's amazing how much you can do with only a few lines of code.

  • James Stamp made a comment
    Lecture Resources

    I found the computerphile video is very informative. Well worth watching

  • James Stamp made a comment
    HyperText Transfer Protocol

    This is really great content. Easy to understand and follow.

  • James Stamp made a comment
    Introduction to Dynamic Web Content

    A great introduction. Very clear and succinct

  • James Stamp replied to James Stamp
    Improve a piece of code with functions

    Hi @ChineloNwaiwu, thanks for taking the time to check out my code and providing feedback. Amended code here https://pastebin.com/5NYmggk8

    I wasn’t aware of the quit() function. I’ll check that out.

  • James Stamp replied to James Stamp
    Create an Item class

    Hi @Andreray, thanks for information about f / format. I’ll certainly check this out.

  • James Stamp made a comment
    End of the course

    Excellent course and very enjoyable. The exercises really help in understanding the concepts presented. It is amazing how much can be created with just the concepts covered on 4 weeks.

    Many thanks to all involved in creating and delivering this course.

  • James Stamp made a comment
    Finishing the game

    RPG Info game here. There are four classes - room, item, character, rpginfo
    There is also a main program (main)

    https://pastebin.com/ZEMM10mL

    game allows the player to fight, talk, explore rooms, use items, take items dropped by enemies, check character inventory. Coding for all four challenges is included

  • James Stamp made a comment
    Properties

    Update the Room class. It now has a mixture of attributes and properties
    ~~~
    class Room():
    numberOfRooms = 0

    def __init__(self,roomName):
    #object attributes
    self._name = roomName
    self._description = None
    self._items = None
    self.exits = None
    self.linkedRooms = {}
    self._character =...
  • James Stamp replied to Filimon Diamantidis
    Different types of method

    Hi @FilimonDiamantidis, I found this website helpful in understanding the difference.

    In short,

    • A class method can change class variables, but cannot change instance variables
    • A static method cannot change class or instance variables

    https://realpython.com/instance-class-and-static-methods-demystified/

  • James Stamp made a comment
    End of week three

    Interesting week. Coding the objects seems straightforward, but I can see it can become quite complex to maintain / debug if the objects are not designed properly.

    Are there any best practice guides as for the design of objects, specifically for methods that check / use attributes of a class? (Sometimes, I am not sure if I need a method in an object class…

  • James Stamp made a comment
    Interacting with your game

    Mini game here.
    Two characters - populate the map, a Friend and an Enemy
    Possible Actions - display, help, fight, talk, north, south, east, west, exit

    Actions
    display - display information about current room
    help - shows possible actions
    fight - fight Enemy character if they are in the room. The Friend character will not fight
    talk - character will…

  • James Stamp made a comment
    Adding new attributes and methods

    Code for enemy class and the fight with Zach the Zombie

    https://pastebin.com/LNfFBpv2

  • James Stamp made a comment
    Welcome to week three

    ~~~
    from character import Character
    polly = Character(‘Polly’,’Poll just repeats what you say’)
    chat = True
    while chat:
    comment = input(‘Enter something to say to Polly:’).strip()
    if comment == ‘’:
    polly.set_conversation(None)
    polly.talk()
    chat = False
    else:
    polly.set_conversation(comment)
    …

  • James Stamp made a comment
    Create an Item class

    ~~~
    class Item():
    def init(self,roomName):
    #constructor
    #object attributes
    self.name = name
    self.description = None
    self.value = None

    def set_name(self,name):
    self.name = name

def get_name(self):
    return self.name
    
def...
  • James Stamp made a comment
    Getters and setters

    ~~~
    class Room():
    def init(self,roomName):
    #object attributes
    self.name = roomName
    self.description = None
    self.items = None
    self.exits = None

    def set_description(self,description):
    self.description = description
    
def get_description(self):
    return...
  • James Stamp made a comment
    Explore a text adventure game

    Methods
    north, south, east, west, up, down

    Attributes
    size, colour, descriptions, items, exits, description

  • James Stamp made a comment
    Drawing challenge

    Code draws 20 shapes of random size, colour and position.

    ~~~
    from shapes import Paper, Triangle, Rectangle, Oval
    from random import randint

    def getColour():
    #return a random colour string
    colours = [“red”,”orange”,”yellow”,”green”,”blue”,”indigo”,”purple”]
    colour = colours[randint(0,6)]
    return colour

    def drawRectangle():
    …

  • James Stamp made a comment
    Turtle race

    My Turtle race here: https://pastebin.com/99SRygZB

    Continues until a turtle reaches a finishes line (x-coord =200). Turtles have been given different upper and lower speeds

  • James Stamp made a comment
    End of the course

    I really enjoyable course. The exercises really helped in understanding the concepts presented. Thanks to all involved in producing and presenting the course.

  • James Stamp made a comment
    Comparing linear and binary search

    Binary Search is a lot quicker than the Linear Search.

    Binary search - results are always coming back as 0 seconds for lists as long as 9999999.

    Linear search - in general, the longer the list, the time taken to return a result increase

    https://pastebin.com/1Cg1bCTb

  • James Stamp made a comment
    Implementing binary search

    Various implementations of the Binary Search
    - Standard Search
    - Leftmost element if multiple matches occur
    - Rightmost element if multiple matches occur
    - Closest element if a match doesn't occur

    https://pastebin.com/71eESZ7W

  • James Stamp made a comment
    The big question

    Digital Marketing is more targetable and dynamic in it's delivery methods (eg to change the recipients for a mailshot in traditional marketing would require readdressing multiple envelopes, whereas the same mailshot with emails may only take a couple of minutes to change the recipient group)

    The delivery methods are completely different. Traditional...

  • James Stamp made a comment
    End of the course

    A really enjoyable. The mix and of presentations and exercises was the right level. In addition, I found the concepts / ideas were presented clearly.

    The one thing I struggled with was debugging with the Mu environment. Sometimes, it took me a bit of time to find out what a particular errors were due to not knowing my way around the IDE.

    Thanks to...

  • James Stamp made a comment
    The wide variety of possible data analyses

    One additional value that could be recorded after each round is the value chosen leading to the a win or defeat.

  • James Stamp made a comment
    Assignment: logging wins

    Code with a statistics of win rates for each card

    https://pastebin.com/0Va4S9GD

    This version is completely automated and will produced up to 25000 card comparisons. Uncommenting the line #stat = chooseStat() within the mainLoop function will allow a person to play.

    There is also a line clearTable(conn,'result') in the main program body that, if...

  • James Stamp made a comment
    Making the game suitable for two players

    Game code here
    - requests number of rounds and names of players
    - one player game against the computer

    https://pastebin.com/RK4RhD23

  • James Stamp made a comment
    Tracking cards

    Code to pick random card and, if different from previous card, will add to picked table.

    Code clears the picked table from entries at start of program. Program continually asks to pick another card until the user enters something other than D or Y. Entering D will display the current records from the picked table

    https://pastebin.com/uJD9BHkb

  • James Stamp made a comment
    The CRUD model

    A little application with all CRUD operations

    https://pastebin.com/i4LQUKXR

  • James Stamp made a comment
    End of Week 2

    A really great week. There was a lot of new things introduced, enough to go away and practice with.

  • James Stamp made a comment
    Validating file data

    Updated RPG code to check health is between 0 and 5. Anything lower than 0 or higher than 5 is highlighted as cheating

    https://pastebin.com/y17TXDxi

  • James Stamp made a comment
    Validating user input
  • James Stamp replied to Steve Seabrook
    Using CSV in Python

    Hi @SteveSeabrook, to suppress the display of <class 'str'> <class 'float'>, remove or comment out the final print line.

    https://pastebin.com/tj3GxEpM

  • James Stamp made a comment
    Saving your progress

    RPG code with load and save functionality. Updated the showStatus code to display the possible directions from the current position

    https://pastebin.com/f3RsB64b

  • James Stamp made a comment
    Using CSV in Python

    Code to read from and write to CSV file. Had an issue with the write method creating an additional blank line after each row entry. Found a post on StackOverflow forum with one potential solution to this

    https://pastebin.com/v4NCZ7TZ

  • James Stamp replied to Steve Seabrook
    Using CSV in Python

    Hi @SteveSeabrook, the <class 'str'> <class 'float'> output is due to the line print(type(row[0]), type(row[1])) in your second with block.

  • James Stamp made a comment
    External modules/libraries/packages

    Math Quiz with plot added.

    I need to play around with the bar chart settings and properties though as the bars are being displayed in a strange way (the higher scores are being displayed with smaller bars)

    https://pastebin.com/dG9ne5wr

  • James Stamp made a comment
    Storing a table of high scores

    Maths quiz with randomly generated questions. Took a bit of testing and googling to get the right python commands I wanted, but got there in the end.

    https://pastebin.com/jzG85uX3