Looking for a more optimized approach (Python)

[seanpm2001]

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Looking for a more optimized approach (Python)

I gave up early on on the original Advanced Eye Chart script due to its over complexity. I know it can be done in a much more efficient way, I just don't know what. I have been trying to find a new efficient way for nearly 48 hours.

Here is the old, incomplete, inefficient code

# This is extremely inefficient. If anyone knows a better way, let me know
letter1ID = random.randint(0, 85) # First letter on the chart, top left, largest (200/20)
if (letter1ID == 0):
	letter1 = str("a")
if (letter1ID == 1):
	letter1 = str("A")
if (letter1ID == 2):
	letter1 = str("b")
if (letter1ID == 3):
	letter1 = str("B")
if (letter1ID == 4):
	letter1 = str("c")
if (letter1ID == 5):
	letter1 = str("C")
if (letter1ID == 6):
	letter1 = str("d")
if (letter1ID == 7):
	letter1 = str("D")
if (letter1ID == 8):
	letter1 = str("e")
if (letter1ID == 9):
	letter1 = str("E")
if (letter1ID == 10):
	letter1 = str("f")
if (letter1ID == 11):
	letter1 = str("F")
if (letter1ID == 12):
	letter1 = str("g")
if (letter1ID == 13):
	letter1 = str("G")
if (letter1ID == 14):
	letter1 = str("h")
if (letter1ID == 15):
	letter1 = str("H")
if (letter1ID == 16):
	letter1 = str("i")
if (letter1ID == 17):
	letter1 = str("I")
if (letter1ID == 18):
	letter1 = str("j")
if (letter1ID == 19):
	letter1 = str("J")
if (letter1ID == 20):
	letter1 = str("k")
if (letter1ID == 21):
	letter1 = str("K")
if (letter1ID == 22):
	letter1 = str("l")
if (letter1ID == 23):
	letter1 = str("L")
if (letter1ID == 24):
	letter1 = str("m")
if (letter1ID == 25):
	letter1 = str("M")
if (letter1ID == 26):
	letter1 = str("n")
if (letter1ID == 27):
	letter1 = str("N")
if (letter1ID == 28):
	letter1 = str("o")
if (letter1ID == 29):
	letter1 = str("O")
if (letter1ID == 30):
	letter1 = str("p")
if (letter1ID == 31):
	letter1 = str("P")
if (letter1ID == 32):
	letter1 = str("q")
if (letter1ID == 33):
	letter1 = str("Q")
if (letter1ID == 34):
	letter1 = str("r")
if (letter1ID == 35):
	letter1 = str("R")
if (letter1ID == 36):
	letter1 = str("s")
if (letter1ID == 37):
	letter1 = str("S")
if (letter1ID == 38):
	letter1 = str("T")
if (letter1ID == 39):
	letter1 = str("t")
if (letter1ID == 40):
	letter1 = str("u")
if (letter1ID == 41):
	letter1 = str("U")
if (letter1ID == 42):
	letter1 = str("v")
if (letter1ID == 43):
	letter1 = str("V")
if (letter1ID == 44):
	letter1 = str("w")
if (letter1ID == 45):
	letter1 = str("W")
if (letter1ID == 46):
	letter1 = str("x")
if (letter1ID == 47):
	letter1 = str("X")
if (letter1ID == 48):
	letter1 = str("y")
if (letter1ID == 49):
	letter1 = str("Y")
if (letter1ID == 50):
	letter1 = str("z")
if (letter1ID == 51):
	letter1 = str("Z")
if (letter1ID == 52):
	letter1 = str("0")
if (letter1ID == 53):
	letter1 = str("1")
if (letter1ID == 54):
	letter1 = str("2")
if (letter1ID == 55):
	letter1 = str("3")
if (letter1ID == 56):
	letter1 = str("4")
if (letter1ID == 57):
	letter1 = str("5")
if (letter1ID == 58):
	letter1 = str("6")
if (letter1ID == 59):
	letter1 = str("7")
if (letter1ID == 60):
	letter1 = str("8")
if (letter1ID == 61):
	letter1 = str("9")
if (letter1ID == 62):
	letter1 = str(",")
if (letter1ID == 63):
	letter1 = str(".")
if (letter1ID == 64):
	letter1 = str("!")
if (letter1ID == 65):
	letter1 = str("@")
if (letter1ID == 66):
	letter1 = str("#")
if (letter1ID == 67):
	letter1 = str("$")
if (letter1ID == 68):
	letter1 = str("!")
if (letter1ID == 69):
	letter1 = str("%")
if (letter1ID == 70):
	letter1 = str("^")
if (letter1ID == 71):
	letter1 = str("&")
if (letter1ID == 72):
	letter1 = str("*")
if (letter1ID == 73):
	letter1 = str("=")
if (letter1ID == 74):
	letter1 = str("-")
if (letter1ID == 75):
	letter1 = str("+")
if (letter1ID == 76):
	letter1 = str("_")
if (letter1ID == 77):
	letter1 = str("?")
if (letter1ID == 78):
	letter1 = str("<")
if (letter1ID == 79):
	letter1 = str(">")
if (letter1ID == 80):
	letter1 = str("~")
if (letter1ID == 81):
	letter1 = str("`")
if (letter1ID == 82):
	letter1 = str("\"")
if (letter1ID == 83):
	letter1 = str("/")
if (letter1ID == 84):
	letter1 = str(":")
if (letter1ID == 85):
	letter1 = str(";")
letter2ID = random.randint(0, 85)
if (letter2ID == 0 and letter2ID != letter1ID):
	letter2 = str("a")
if (letter2ID == 1 and letter2ID != letter1ID):
	letter2 = str("A")
if (letter2ID == 2 and letter2ID != letter1ID):
	letter2 = str("b")
if (letter1ID == 3 and letter2ID != letter1ID):
	letter1 = str("B")
if (letter1ID == 4 and letter2ID != letter1ID):
	letter1 = str("c")
if (letter1ID == 5 and letter2ID != letter1ID):
	letter1 = str("C")
if (letter1ID == 6 and letter2ID != letter1ID):
	letter1 = str("d")
if (letter1ID == 7 and letter2ID != letter1ID):
	letter1 = str("D")
if (letter1ID == 8 and letter2ID != letter1ID):
	letter1 = str("e")
if (letter1ID == 9 and letter2ID != letter1ID):
	letter1 = str("E")
if (letter1ID == 10 and letter2ID != letter1ID):
	letter1 = str("f")
if (letter1ID == 11 and letter2ID != letter1ID):
	letter1 = str("F")
if (letter1ID == 12 and letter2ID != letter1ID):
	letter1 = str("g")
if (letter1ID == 13 and letter2ID != letter1ID):
	letter1 = str("G")
if (letter1ID == 14 and letter2ID != letter1ID):
	letter1 = str("h")
if (letter1ID == 15 and letter2ID != letter1ID):
	letter1 = str("H")
if (letter1ID == 16 and letter2ID != letter1ID):
	letter1 = str("i")
if (letter1ID == 17 and letter2ID != letter1ID):
	letter1 = str("I")
if (letter1ID == 18 and letter2ID != letter1ID):
	letter1 = str("j")
if (letter1ID == 19 and letter2ID != letter1ID):
	letter1 = str("J")
if (letter1ID == 20 and letter2ID != letter1ID):
	letter1 = str("k")
if (letter1ID == 21 and letter2ID != letter1ID):
	letter1 = str("K")
if (letter1ID == 22 and letter2ID != letter1ID):
	letter1 = str("l")
if (letter1ID == 23 and letter2ID != letter1ID):
	letter1 = str("L")
if (letter1ID == 24 and letter2ID != letter1ID):
	letter1 = str("m")
if (letter1ID == 25 and letter2ID != letter1ID):
	letter1 = str("M")
if (letter1ID == 26 and letter2ID != letter1ID):
	letter1 = str("n")
if (letter1ID == 27 and letter2ID != letter1ID):
	letter1 = str("N")
if (letter1ID == 28 and letter2ID != letter1ID):
	letter1 = str("o")
if (letter1ID == 29 and letter2ID != letter1ID):
	letter1 = str("O")
if (letter1ID == 30 and letter2ID != letter1ID):
	letter1 = str("p")
if (letter1ID == 31 and letter2ID != letter1ID):
	letter1 = str("P")
if (letter1ID == 32 and letter2ID != letter1ID):
	letter1 = str("q")
if (letter1ID == 33 and letter2ID != letter1ID):
	letter1 = str("Q")
if (letter1ID == 34 and letter2ID != letter1ID):
	letter1 = str("r")
if (letter1ID == 35 and letter2ID != letter1ID):
	letter1 = str("R")
if (letter1ID == 36 and letter2ID != letter1ID):
	letter1 = str("s")
if (letter1ID == 37 and letter2ID != letter1ID):
	letter1 = str("S")
if (letter1ID == 38 and letter2ID != letter1ID):
	letter1 = str("T")
if (letter1ID == 39 and letter2ID != letter1ID):
	letter1 = str("t")
if (letter1ID == 40 and letter2ID != letter1ID):
	letter1 = str("u")
if (letter1ID == 41 and letter2ID != letter1ID):
	letter1 = str("U")
if (letter1ID == 42 and letter2ID != letter1ID):
	letter1 = str("v")
if (letter1ID == 43 and letter2ID != letter1ID):
	letter1 = str("V")
if (letter1ID == 44 and letter2ID != letter1ID):
	letter1 = str("w")
if (letter1ID == 45 and letter2ID != letter1ID):
	letter1 = str("W")
if (letter1ID == 46 and letter2ID != letter1ID):
	letter1 = str("x")
if (letter1ID == 47 and letter2ID != letter1ID):
	letter1 = str("X")
if (letter1ID == 48 and letter2ID != letter1ID):
	letter1 = str("y")
if (letter1ID == 49 and letter2ID != letter1ID):
	letter1 = str("Y")
if (letter1ID == 50 and letter2ID != letter1ID):
	letter1 = str("z")
if (letter1ID == 51 and letter2ID != letter1ID):
	letter1 = str("Z")
if (letter1ID == 52 and letter2ID != letter1ID):
	letter1 = str("0")
if (letter1ID == 53 and letter2ID != letter1ID):
	letter1 = str("1")
if (letter1ID == 54 and letter2ID != letter1ID):
	letter1 = str("2")
if (letter1ID == 55 and letter2ID != letter1ID):
	letter1 = str("3")
if (letter1ID == 56 and letter2ID != letter1ID):
	letter1 = str("4")
if (letter1ID == 57 and letter2ID != letter1ID):
	letter1 = str("5")
if (letter1ID == 58 and letter2ID != letter1ID):
	letter1 = str("6")
if (letter1ID == 59 and letter2ID != letter1ID):
	letter1 = str("7")
if (letter1ID == 60 and letter2ID != letter1ID):
	letter1 = str("8")
if (letter1ID == 61 and letter2ID != letter1ID):
	letter1 = str("9")
if (letter1ID == 62 and letter2ID != letter1ID):
	letter1 = str(",")
if (letter1ID == 63 and letter2ID != letter1ID):
	letter1 = str(".")
if (letter1ID == 64 and letter2ID != letter1ID):
	letter1 = str("!")
if (letter1ID == 65 and letter2ID != letter1ID):
	letter1 = str("@")
if (letter1ID == 66 and letter2ID != letter1ID):
	letter1 = str("#")
if (letter1ID == 67 and letter2ID != letter1ID):
	letter1 = str("$")
if (letter1ID == 68 and letter2ID != letter1ID):
	letter1 = str("!")
if (letter1ID == 69 and letter2ID != letter1ID):
	letter1 = str("%")
if (letter1ID == 70 and letter2ID != letter1ID):
	letter1 = str("^")
if (letter1ID == 71 and letter2ID != letter1ID):
	letter1 = str("&")
if (letter1ID == 72 and letter2ID != letter1ID):
	letter1 = str("*")
if (letter1ID == 73 and letter2ID != letter1ID):
	letter1 = str("=")
if (letter1ID == 74 and letter2ID != letter1ID):
	letter1 = str("-")
if (letter1ID == 75 and letter2ID != letter1ID):
	letter1 = str("+")
if (letter1ID == 76 and letter2ID != letter1ID):
	letter1 = str("_")
if (letter1ID == 77 and letter2ID != letter1ID):
	letter1 = str("?")
if (letter1ID == 78 and letter2ID != letter1ID):
	letter1 = str("<")
if (letter1ID == 79 and letter2ID != letter1ID):
	letter1 = str(">")
if (letter1ID == 80 and letter2ID != letter1ID):
	letter1 = str("~")
if (letter1ID == 81 and letter2ID != letter1ID):
	letter1 = str("`")
if (letter1ID == 82 and letter2ID != letter1ID):
	letter1 = str("\"")
if (letter1ID == 83 and letter2ID != letter1ID):
	letter1 = str("/")
if (letter1ID == 84 and letter2ID != letter1ID):
	letter1 = str(":")
if (letter1ID == 85 and letter2ID != letter1ID):
	letter1 = str(";")
letter3ID = random.randint(0, 512)
if (letter3ID == 0 and letter3ID != letter2ID):
	letter3 = str("a")
if (letter3ID == 1 and letter3ID != letter2ID):
	letter3 = str("A")
if (letter3ID == 2 and letter3ID != letter2ID):
	letter3 = str("b")
# Stopping here for now until I find a more efficient method. There HAS to be a better way to do this.

I am looking for ways to better optimize this, and continue to support various languages and alphabets. I am not looking for another language to do this in, unless it is absolutely necessary in the case that Python doesn't support that method.

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[NihalKarne]

Hi, from what I understand you are looking for an efficient way to randomly select non repeated 55 character(alphabets/digits) that later can be used to display in a Snellen Chart. Have I understood it correctly?

[seanpm2001]

Yes this is exactly it. Do you know of any ways? By the way, I am trying to find a method that works in multiple languages, so I can't rely on ASCII. I am trying to get it to also work for Cyrillic, Greek, Japanese, Georgian, and many other alphabets.

[NihalKarne]

I do have an idea for ASCII characters as of now. I will need to do more research to understand use other language characters. I can send a PR with a function which could return a list of 55 English letters randomly chosen. Would it help to get things started?

[seanpm2001]

Yes it would. Thank you for your help. I am not too good at pull requests at the moment, so I might need a little help confirming the request. I am still new to Git.

[NihalKarne]

For the other languages you will need to use unicode characters, I dont have lot of experience in it but as far as I understand each language have a defined range in the unicode series, all we need to do is select characters for a given language from that range and everything else would be similar. These two links might be of help Unicode Character Ranges
and Unicode & Character Encodings in Python.