def go(f="data/weather.csv",silent=True): the=about.defaults() t=Tab(file=f) for n,here in enumerate(t.rows): tmp=t.around(here,the) me= tmp[0][1] close = tmp[1][1] far = t.far(here,the) further= tmp[-1][1] if not silent: print("") print(n,here.cells) print(n,me.cells) print(n,far.cells) print(n,further.cells) assert tmp[0][0] <= tmp[1][0] < tmp[-1][0]