64 lines
2.0 KiB
Bash
64 lines
2.0 KiB
Bash
#!/bin/bash
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# This script installs the latest Python version and pip on Ubuntu 22.04 LTS
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# Function to check for errors
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check_error() {
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if [ $? -ne 0 ]; then
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echo "Error: $1"
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exit 1
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fi
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}
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# Step 1: Update the package list
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echo "Updating package list..."
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sudo apt update
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check_error "Failed to update package list."
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# Step 2: Install prerequisite packages
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echo "Installing prerequisite packages..."
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sudo apt install -y software-properties-common curl
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check_error "Failed to install prerequisites."
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# Step 3: Add the deadsnakes PPA
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echo "Adding deadsnakes PPA for latest Python versions..."
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sudo add-apt-repository ppa:deadsnakes/ppa -y
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check_error "Failed to add deadsnakes PPA."
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# Step 4: Update the package list again after adding the PPA
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echo "Updating package list after adding PPA..."
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sudo apt update
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check_error "Failed to update package list after adding PPA."
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# Step 5: Install the latest Python version (e.g., Python 3.11)
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PYTHON_VERSION=3.11
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echo "Installing Python $PYTHON_VERSION..."
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sudo apt install -y python${PYTHON_VERSION}
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check_error "Failed to install Python $PYTHON_VERSION."
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# Step 6: Set Python 3.x as the default python3 version
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echo "Setting Python $PYTHON_VERSION as the default python3..."
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sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python${PYTHON_VERSION} 1
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check_error "Failed to set Python $PYTHON_VERSION as the default python3."
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# Step 7: Install pip
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echo "Installing pip for Python $PYTHON_VERSION..."
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sudo apt install -y python3-pip
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check_error "Failed to install pip."
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# If pip is not installed for the latest version, use get-pip.py
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if ! command -v pip3 &> /dev/null; then
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echo "Pip not found, downloading get-pip.py..."
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curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
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sudo python${PYTHON_VERSION} get-pip.py
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check_error "Failed to install pip using get-pip.py."
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rm get-pip.py
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fi
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# Step 8: Verify installation
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echo "Verifying Python and pip installation..."
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python3 --version
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pip3 --version
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echo "Python and pip installation completed successfully!"
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