hi there
I am actually running this on a desktop Ubuntu 16.04 x64 desktop running Python 3.6. but I did up to a day ago run my script in a PY35 env on the same computer and the results were the same. Here is the display of cat/proccpuinfo 
clived@UbuntuGnome2:~$ cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel® Pentium® Dual  CPU  E2140  @ 1.60GHz
stepping	: 13
microcode	: 0xa1
cpu MHz		: 1200.000
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm
bugs		:
bogomips	: 3189.63
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:
processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel® Pentium® Dual  CPU  E2140  @ 1.60GHz
stepping	: 13
microcode	: 0xa1
cpu MHz		: 1200.000
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm
bugs		:
bogomips	: 3189.63
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:
This computer does seem to support SSE.SSE2 and SSE3 but not SSE4. Both are older machines running I686 cpus
I hope this helps and thanks for your response
Clive