Snpedia will block any direct scrapping attempt on their main website, but you can query bots.snpedia.com using python or R.

More details > https://www.snpedia.com/index.php/Bulk

I have run the python code mentioned in Bulk. But it shows this error:

URLError: <urlopen error [Errno -2] Name or service not known> trying request again in 10 seconds

Here is the code:

from wikitools import wiki, category

site = wiki.Wiki("http://bots.snpedia.com/api.php")                  # open snpedia
snps = category.Category(site, "Is_a_snp")
snpedia = []

for article in snps.getAllMembersGen(namespaces=[0]):   # get all snp-names as list and print them
    snpedia.append(article.title.lower())
    print article.title