Fix tests for file_transfer and perceptron.py (#1121)

.travis.yml

@@ -4,32 +4,6 @@ python: 3.7
 cache: pip
 before_install: pip install --upgrade pip setuptools
 install: pip install -r requirements.txt
-matrix:
-  include:
-    - name: "Main tests"
-    # The following files currently fail pytests.  See issues: #1016, #1044, #1080
-    # Here they are run allow_failures mode and when each passes pytest, it can be
-    # removed BOTH lists below.  Complex now but simple once all files pass pytest.
-    # - env: FILE=pytest file_transfer_protocol/ftp_client_server.py
-    #   before_script: true
-    #   script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest file_transfer/ftp_send_receive.py
-      before_script: true
-      script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest machine_learning/linear_regression.py
-      before_script: true
-      script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest machine_learning/perceptron.py
-      before_script: true
-      script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest machine_learning/random_forest_classification/random_forest_classification.py
-      before_script: true
-      script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest machine_learning/random_forest_regression/random_forest_regression.py
-      before_script: true
-      script: pytest ${FILE} --doctest-modules
-  allow_failures:
-    - before_script: true
 before_script:
   - black --check . || true
   - flake8 . --count --select=E9,F401,F63,F7,F82 --show-source --statistics
@@ -37,11 +11,6 @@ script:
   - scripts/validate_filenames.py  # no uppercase, no spaces, in a directory
   - mypy --ignore-missing-imports .
   - pytest . --doctest-modules
-      --ignore=file_transfer/ftp_send_receive.py
-      --ignore=machine_learning/linear_regression.py
-      --ignore=machine_learning/perceptron.py
-      --ignore=machine_learning/random_forest_classification/random_forest_classification.py
-      --ignore=machine_learning/random_forest_regression/random_forest_regression.py
 after_success:
   - scripts/build_directory_md.py > DIRECTORY.md
   - cat DIRECTORY.md

file_transfer/ftp_send_receive.py

@@ -1,36 +0,0 @@
-"""
-File transfer protocol used to send and receive files using FTP server.
-Use credentials to provide access to the FTP client
-
-Note: Do not use root username & password for security reasons
-Create a seperate user and provide access to a home directory of the user
-Use login id and password of the user created 
-cwd here stands for current working directory
-"""
-
-from ftplib import FTP
-ftp = FTP('xxx.xxx.x.x')  # Enter the ip address or the domain name here
-ftp.login(user='username', passwd='password')
-ftp.cwd('/Enter the directory here/')
-
-"""
-The file which will be received via the FTP server
-Enter the location of the file where the file is received
-"""
-
-def ReceiveFile():
-	FileName = 'example.txt'   """ Enter the location of the file """
-	with open(FileName, 'wb') as LocalFile:
-		ftp.retrbinary('RETR ' + FileName, LocalFile.write, 1024)
-	ftp.quit()
-
-"""
-The file which will be sent via the FTP server
-The file send will be send to the current working directory
-"""
-
-def SendFile():
-	FileName = 'example.txt'   """ Enter the name of the file """
-	with open(FileName, 'rb') as LocalFile:
-		ftp.storbinary('STOR ' + FileName, LocalFile)
-	ftp.quit()