coursera-dl output

coursera-dl.output

INFO:root:Downloading class: econ1scientists-2012-001
INFO:root:Downloaded http://class.coursera.org/econ1scientists-2012-001/lecture/index (142695 bytes)
INFO:root:Introduction_and_Logistics
INFO:root:  Welcome_and_introduction_5-48
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/13
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=13_en&format=txt
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INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=13
INFO:root:  Logistics_11-21
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/23
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INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=23
INFO:root:  Course_overview_12-15
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/65
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INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=65_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=65
INFO:root:Unit_1._Principles_of_optimizing_behavior
INFO:root:  1.0._Introduction_4-05
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/3
INFO:root:    pdf https://d19vezwu8eufl6.cloudfront.net/econ1scientists/notes%2Funit1.pdf
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=3_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=3_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=3
INFO:root:  1.1._A_real_life_example_4-39
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/5
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=5_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=5_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=5
INFO:root:  1.2._Basic_optimization_principles_13-51
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/7
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INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=7_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=7
INFO:root:  Practice_problem_1.1_--_question
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/9
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INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=9
INFO:root:  Practice_problem_1.1_--_solution
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/75
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INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=75_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=75
INFO:root:  1.3._Remarks_on_basic_optimization_5-10
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/11
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=11_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=11_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=11
INFO:root:  1.4._Adding_economic_structure_into_the_problem_10-15
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/15
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=15_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=15_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=15
INFO:root:  1.5._Additional_intuition_6-37
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/17
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=17_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=17_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=17
INFO:root:  1.6._Why_is_the_additional_structure_useful_13-31
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/19
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=19_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=19_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=19
INFO:root:  1.7._Example_5-35
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/21
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=21_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=21_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=21
INFO:root:  1.8._Example_3-11
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/25
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=25_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=25_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=25
INFO:root:  Practice_problem_1.2_--_question
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/27
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=27_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=27_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=27
INFO:root:  Practice_problem_1.2_--_solution
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/77
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=77_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=77_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=77
INFO:root:  1.9._More_on_corner_solutions_12-46
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/29
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=29_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=29_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=29
INFO:root:  Practice_problem_1.3_--_question
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/31
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=31_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=31_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=31
INFO:root:  Practice_problem_1.3_--_solution
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/79
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=79_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=79_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=79
INFO:root:  1.10._Problems_with_equality_constraints_24-16
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/33
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=33_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=33_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=33
INFO:root:  1.11._Example_6-00
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/35
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=35_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=35_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=35
INFO:root:  1.12._Example_6-35
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/37
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=37_en&format=txt
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INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=37
INFO:root:  Practice_problem_1.4_--_question
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/39
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=39_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=39_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=39
INFO:root:  Practice_problem_1.4_--_solution
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/81
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=81_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=81_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=81
INFO:root:  1.13._Summary_6-05
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/41
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INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=41_en&format=srt
INFO:root:    mp4 https://class.coursera.org/econ1scientists-2012-001/lecture/download.mp4?lecture_id=41
INFO:root:Unit_2._Consumer_theory
INFO:root:  2.0._Introduction_4-20
INFO:root:    None https://class.coursera.org/econ1scientists-2012-001/lecture/43
INFO:root:    pdf https://d19vezwu8eufl6.cloudfront.net/econ1scientists/notes%2Funit2_part1.pdf
INFO:root:    pdf https://d19vezwu8eufl6.cloudfront.net/econ1scientists/notes%2Funit2_part2.pdf
INFO:root:    txt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=43_en&format=txt
INFO:root:    srt https://class.coursera.org/econ1scientists-2012-001/lecture/subtitles?q=43_en&format=srt
INFO:root:    course https://class.course
INFO:root:Found 3 sections and 26 lectures on this page
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/01_Welcome_and_introduction_5-48.mp4
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/01_Welcome_and_introduction_5-48.txt
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/01_Welcome_and_introduction_5-48.srt
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/02_Logistics_11-21.mp4
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/02_Logistics_11-21.txt
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/02_Logistics_11-21.srt
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/03_Course_overview_12-15.mp4
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/03_Course_overview_12-15.txt
INFO:root:econ1scientists-2012-001/01_Introduction_and_Logistics/03_Course_overview_12-15.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/01_1.0._Introduction_4-05.pdf
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/01_1.0._Introduction_4-05.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/01_1.0._Introduction_4-05.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/01_1.0._Introduction_4-05.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/02_1.1._A_real_life_example_4-39.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/02_1.1._A_real_life_example_4-39.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/02_1.1._A_real_life_example_4-39.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/03_1.2._Basic_optimization_principles_13-51.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/03_1.2._Basic_optimization_principles_13-51.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/03_1.2._Basic_optimization_principles_13-51.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/04_Practice_problem_1.1_--_question.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/04_Practice_problem_1.1_--_question.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/04_Practice_problem_1.1_--_question.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/05_Practice_problem_1.1_--_solution.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/05_Practice_problem_1.1_--_solution.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/05_Practice_problem_1.1_--_solution.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/06_1.3._Remarks_on_basic_optimization_5-10.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/06_1.3._Remarks_on_basic_optimization_5-10.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/06_1.3._Remarks_on_basic_optimization_5-10.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/07_1.4._Adding_economic_structure_into_the_problem_10-15.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/07_1.4._Adding_economic_structure_into_the_problem_10-15.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/07_1.4._Adding_economic_structure_into_the_problem_10-15.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/08_1.5._Additional_intuition_6-37.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/08_1.5._Additional_intuition_6-37.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/08_1.5._Additional_intuition_6-37.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/09_1.6._Why_is_the_additional_structure_useful_13-31.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/09_1.6._Why_is_the_additional_structure_useful_13-31.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/09_1.6._Why_is_the_additional_structure_useful_13-31.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/10_1.7._Example_5-35.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/10_1.7._Example_5-35.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/10_1.7._Example_5-35.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/11_1.8._Example_3-11.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/11_1.8._Example_3-11.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/11_1.8._Example_3-11.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/12_Practice_problem_1.2_--_question.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/12_Practice_problem_1.2_--_question.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/12_Practice_problem_1.2_--_question.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/13_Practice_problem_1.2_--_solution.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/13_Practice_problem_1.2_--_solution.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/13_Practice_problem_1.2_--_solution.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/14_1.9._More_on_corner_solutions_12-46.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/14_1.9._More_on_corner_solutions_12-46.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/14_1.9._More_on_corner_solutions_12-46.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/15_Practice_problem_1.3_--_question.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/15_Practice_problem_1.3_--_question.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/15_Practice_problem_1.3_--_question.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/16_Practice_problem_1.3_--_solution.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/16_Practice_problem_1.3_--_solution.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/16_Practice_problem_1.3_--_solution.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/17_1.10._Problems_with_equality_constraints_24-16.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/17_1.10._Problems_with_equality_constraints_24-16.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/17_1.10._Problems_with_equality_constraints_24-16.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/18_1.11._Example_6-00.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/18_1.11._Example_6-00.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/18_1.11._Example_6-00.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/19_1.12._Example_6-35.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/19_1.12._Example_6-35.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/19_1.12._Example_6-35.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/20_Practice_problem_1.4_--_question.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/20_Practice_problem_1.4_--_question.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/20_Practice_problem_1.4_--_question.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/21_Practice_problem_1.4_--_solution.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/21_Practice_problem_1.4_--_solution.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/21_Practice_problem_1.4_--_solution.srt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/22_1.13._Summary_6-05.mp4
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/22_1.13._Summary_6-05.txt
INFO:root:econ1scientists-2012-001/02_Unit_1._Principles_of_optimizing_behavior/22_1.13._Summary_6-05.srt
INFO:root:econ1scientists-2012-001/03_Unit_2._Consumer_theory/01_2.0._Introduction_4-20.pdf
INFO:root:econ1scientists-2012-001/03_Unit_2._Consumer_theory/01_2.0._Introduction_4-20.txt
INFO:root:econ1scientists-2012-001/03_Unit_2._Consumer_theory/01_2.0._Introduction_4-20.srt
INFO:root:econ1scientists-2012-001/03_Unit_2._Consumer_theory/01_2.0._Introduction_4-20.course
INFO:root:Downloading https://class.course -> econ1scientists-2012-001/03_Unit_2._Consumer_theory/01_2.0._Introduction_4-20.course
Traceback (most recent call last):
  File "coursera/coursera-dl", line 513, in <module>
    main()
  File "coursera/coursera-dl", line 507, in main
    download_class(args, class_name)
  File "coursera/coursera-dl", line 492, in download_class
    args.verbose_dirs
  File "coursera/coursera-dl", line 283, in download_lectures
    wget_bin, curl_bin, aria2_bin)
  File "coursera/coursera-dl", line 300, in download_file
    download_file_nowget(url, fn, cookies_file)
  File "coursera/coursera-dl", line 347, in download_file_nowget
    urlfile = get_opener(cookies_file).open(url)
  File "/usr/lib/python2.7/urllib2.py", line 400, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 418, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1215, in https_open
    return self.do_open(httplib.HTTPSConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1177, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno -2] Name or service not known>