By Iain Withers LONDON (Reuters) – The London office of one of Canada’s top banks Canadian Imperial Bank of Commerce (CIBC) has been accused of operating a hostile and degrading environment for women, according to a discrimination claim by a former executive at the firm. Zhuofang Wei, who worked as an executive director at CIBC for nearly two years between 2018 and 2020, is suing CIBC for 800,000 pounds ($1 million) for lost earnings and damages, alleging she was subjected to sexual and racial discrimination by managers. Wei said she was dismissed by CIBC in March 2020 after she objected to ta…