64 lines
3.0 KiB
Python
64 lines
3.0 KiB
Python
# 1. Why does ord("😀") give a different number than 0xf09f9880, which is what the hexdump of the same character yields?
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#
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# The ord() function returns the Unicode code point of a character as an integer, which is 128512 for the smiley face.
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# However, the hexdump command, returns the UTF-8 encoding of character.
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# The hexadecimal representation of 128512 is 0x1F600.
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# The UTF-8 encoding of the "😀" character is represented by the sequence of bytes F0 9F 98 80 in hexadecimal.
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# UTF-8 is one of the encoding schemes used to represent Unicode characters as binary data.
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#
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#
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# 8. Hypothetical Situation: If the dataframe is not formatted or cleaned, while the column storing the tomoto sales data isn't named exactly same as 'Tomato_Sales'
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# It will raise a KeyError instead.
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#
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#
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# 9. The solution of the hypothetical situation from my question 8:
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def read_tomato_sales(file_name):
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data = pd.read_csv(file_name)
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if not pd.api.types.is_numeric_dtype(data["Tomato_Sales"]):
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raise TypeError("Tomato_Sales column should contain only numeric values")
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total_sales = data.iloc[:, -1].sum() # This is the key
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print(f"Total tomato sales: {total_sales}")
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# read_tomato_sales("tomato_sales_error.csv")
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# 10. Different human languages can use various character encodings such as UTF-8, UTF-16, or ASCII.
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# While using bytes, you can work with raw data without worrying about specific encodings.
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# This allows us to avoid encoding-related errors and ensures compatibility across different language texts.
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def encode_decode_data():
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print('-' * 20)
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data = input("Enter a sentence using any language: ")
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print('-' * 20)
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print("The sentence you entered is: {}".format(data))
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print('-' * 20)
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encoded_data = data.encode('utf-8')
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print("This sentence after encoded is: {}".format(encoded_data))
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print('-' * 20)
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byte_length = len(encoded_data)
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print("The byte length of this sentence is: {}".format(byte_length))
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print('-' * 20)
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decoded_data = encoded_data.decode()
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print("This sentence after decoded is: {}".format(decoded_data))
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print('-' * 20)
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if __name__ == "__main__":
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run_function = 'function1'
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if run_function == 'function1':
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encode_decode_data()
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elif run_function == 'function2':
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read_tomato_sales(file_name)
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# 2.5. REPL stands for Read-Eval-Print Loop.
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# A REPL is an interactive programming environment that allows you to read input, evaluate expressions or statements, print output, and repeat the process.
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# It provides a quick way to experiment with code, test small snippets, and get immediate feedback.
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# The Python REPL allows you to interactively enter Python code and see the results immediately without needing to write a full script and execute it separately.
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# 3. The '_' is a convention that holds the value of the last printed expression or the result of the last evaluated expression.
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# The actual type of the "_" variable depends on the value assigned to it.
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