sudo apt-get update
sudo rpi-update
sudo apt-get -y dist-upgrade
sudo apt-get update

sudo apt-get install python-smbus i2c-tools mysql-client python-mysqldb git minicom build-essential python-serial python-dev python-pip fswebcam python-openssl -y

MQTT

sudo pip install --index-url=https://pypi.python.org/simple/  paho-mqtt

DHT22

git clone https://github.com/adafruit/Adafruit_Python_DHT.git

cd Adafruit_Python_DHT

sudo python setup.py install

BMP085

git clone https://github.com/adafruit/Adafruit_Python_BMP.git
cd Adafruit_Python_BMP
sudo python setup.py install