How To Install Python Libraries using Requirements File (Requirements.txt)

**Step-by-Step Guide:**

### Step 1: Create a Virtual Environment

Before installing libraries, it’s best practice to create a virtual environment. This helps to isolate your project dependencies from the global Python environment.

1. Open your terminal or command prompt.
2. Navigate to your project directory.

```bash
cd /path/to/your/project
```

3. Create a virtual environment.

```bash
python -m venv venv
```

4. Activate the virtual environment.

- On Windows:

```bash
venv\Scripts\activate
```

- On macOS and Linux:

```bash
source venv/bin/activate
```

### Step 2: Create the Requirements File

1. Install the required libraries for your project.

```bash
pip install library_name
```

Replace `library_name` with the actual name of the library you need.

```bash
```

### Step 3: Using the Requirements File to Install Libraries

1. Ensure that your virtual environment is activated. If not, activate it using the command relevant to your OS as mentioned in Step 1.

```bash
```

### Step 4: Verify the Installation

After installing the libraries, you can verify that they are correctly installed by listing the installed packages.

```bash
pip list
```

This command will display a list of all installed packages in the virtual environment.

```bash
```

```
numpy==1.21.0
pandas=1.3.0
```

```
# Core libraries
numpy==1.21.0
pandas=1.3.0
```

### Conclusion

Don't forget to like, share, and subscribe for more tech tutorials and tips!

#Python #VirtualEnvironment #RequirementsTxt #Pip #PythonLibraries #DependencyManagement #TechTutorial #HowTo #PythonDevelopment #Programming #Code #SoftwareDevelopment