bins = 7

edges = np.linspace(df.value.min(), df.value.max(), bins+1).astype(int)
labels = [f'({edges[i]}, {edges[i+1]}]' for i in range(len(edges)-1)]

df['bin'] = pd.cut(df.value, bins=bins, labels=labels)

#     value         bin
# 1       8     (0, 53]
# 2      16     (0, 53]
# ..    ...         ...
# 45    360  (322, 376]
# 46    368  (322, 376]