Hi
In the student section of the immigration website, it says absolutely nothing about families and spouses of students. In the temporary worker section, it says this:
If your spouse or common-law partner and your dependent children want to work while in Canada, they must apply for their own work permit. Normally, they must meet the same requirements that you did, including (if needed) the labour market opinion (LMO) from Human Resources and Social Development Canada. However, they may qualify for a work permit without an LMO.
For your spouse to apply for a work permit without an LMO, you must meet the following conditions:
1. You must be authorized to work in Canada for six months or longer.
2. The work you are doing must meet a minimum skill level (usually work that would require at least a college diploma). Specifically, your job must be listed in Skill Level O, A or B in the National Occupational Classification.
If you meet these two requirements, your spouse may apply for a work permit that is “open” and that will allow her or him to accept any job with any employer. Your spouse's permit will be valid for the same period as your authorization to work in Canada.
Unless there are special provinsions also for spouses of students, your friend does not qualify for an open work permit and will have to get his own. His spouse can call immigration call centre to verify if he qualifies for an open work permit or not and in that case what he should do at 1 888 242‑2100.
The spouse of a student (who meets the requirements as a student) can obtain an open work permit on entry to Canada. S/he would require proof that his/her spouse is a student and that his/her course is longer than 6 months and is at an approved school. No LMO is required nor is a job required.
You may wish to read:
# Spouses
Spouses and common-law partners of certain foreign workers and of certain foreign students who are currently studying or working under the Post-Graduation Work Permit Program
* Spouses of certain foreign students may obtain a work permit without having to obtain a labour market opinion from HRSDC. This exemption applies to spouses who are not themselves enrolled in full-time studies.
* Eligibility criteria: To be allowed to work in this category, you must prove that you are the spouse of a student who holds a valid student permit and who is studying full time at a post-secondary institution—a university, a community college, a CEGEP, a technical or school of commercial studies—that is financed by the private or public sector and authorized by provincial law to award university degrees."
http://www.cic.gc.ca/english/work/apply-who-permit.aspPMM