How to fix error: argument -x: expected one argument in Python
Hello, Dedicated Coders! 🖥️💡
We're excited to share with you our newest video, "How to solve error: argument -x: expected one argument in Python". 🎥 This series is meticulously designed to arm you with knowledge 🧠 and skills 🛠️ to overcome frequent coding challenges.
Today, we will decipher 🔎 and resolve a common error faced by Python coders: the bit hard to solve error: argument -x: expected one argument. Here is a snapshot of the code of the video:
Troubling Scenario: ❗️
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('-x', type=int)
args = parser.parse_args()
Unwanted Result: 🚫
error: argument -x: expected one argument
Effective Resolution: ✔️
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('-x', type=int, required=True)
args = parser.parse_args()
Desired Output: 🏁
usage: ipykernel_launcher.py [-h] -x X
ipykernel_launcher.py: error: the following arguments are required: -x
In this detailed walkthrough, we will illuminate 💡 the underlying cause of this error, and offer a comprehensive explanation: Code1 expects an integer input for -x but none was provided when running the script. Code2 makes -x mandatory. Run the script with an integer argument for -x, e.g., `script.py -x 5`. 🎯
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