I am planning to use Python code for geophysical time series processing.My OS is Ubuntu 16.04 64-bit. My processor info
lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 23
Model name: Pentium® Dual-Core CPU T4200 @ 2.00GHz
Stepping: 10
CPU MHz: 2000.000
CPU max MHz: 2000.0000
CPU min MHz: 1200.0000
BogoMIPS: 3990.03
L1d cache: 32K
L1i cache: 32K
L2 cache: 1024K
NUMA node0 CPU(s): 0,1

Which plan should I buy?