syntax-error

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I seem to be having a peculiar error in the following code segment (ignore the excess header files and the blank main function, I just wanted to isolate

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I seem to be having a peculiar error in the following code segment (ignore the excess header files and the blank main function, I just wanted to isolate

问题 I am trying to install an image forensics tool for Python, imago. When I try to install it, using the traditional pip command, it gets installed but when I try to run it, it gives me a syntax error as: Traceback (most recent call last): File "/home/ankush/.local/bin/imago", line 6, in <module> from imago.imago import main File "/home/ankush/.local/lib/python3.6/site- packages/imago/imago.py", line 18 """ ^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print("""\ ##########

问题 I am not sure what is wrong with my python code: geneid=request.args.get('geneid') sql=text('select * from INFO where name=:ident') genes=engine.execute(sql,ident=geneid).fetchone() params['objs']=genes if len(genes)==0: flash('NO RESULTS') return render_template('info.html', **params) The error message is: TypeError: object of type 'NoneType' has no len() Any suggestion? I would like to show a flash message when there is no result in my query. I tried also (but did not work): geneid=request

问题 This is what I'm inputting: type = 'filename' im.save(type, '.png') and what this is supposed to do is save the file in a .png format but with the variable as the name, I'm just not 100% sure how the format/syntax is supposed to be laid out. Is it the same as if I wanted to print the variable: Print(type, "This shows up beside the type I think") edit, Don't pay to much attention to the list, it's mostly there as an example. I not sure how to have a variable right beside a Plain text word like

问题 I am getting the error: missing ) after argument list while compiling ejs. I tried many times, but I can't find the problem. Here's the ejs that causes errors. What is the problem with this code? <%- include('../_layouts/adminheader') %> <h2 class='page-title'>Products</h2> <br> <a href="/admin/products/add-product" class="btn btn-primary">Add a new product</a> <br><br> <% if (count > 0) { %> <table class="table table-striped"> <thead> <tr class="home"> <th>Product</th> <th>Price</th> <th

问题 I am getting the error: missing ) after argument list while compiling ejs. I tried many times, but I can't find the problem. Here's the ejs that causes errors. What is the problem with this code? <%- include('../_layouts/adminheader') %> <h2 class='page-title'>Products</h2> <br> <a href="/admin/products/add-product" class="btn btn-primary">Add a new product</a> <br><br> <% if (count > 0) { %> <table class="table table-striped"> <thead> <tr class="home"> <th>Product</th> <th>Price</th> <th

问题 I am getting the error: missing ) after argument list while compiling ejs. I tried many times, but I can't find the problem. Here's the ejs that causes errors. What is the problem with this code? <%- include('../_layouts/adminheader') %> <h2 class='page-title'>Products</h2> <br> <a href="/admin/products/add-product" class="btn btn-primary">Add a new product</a> <br><br> <% if (count > 0) { %> <table class="table table-striped"> <thead> <tr class="home"> <th>Product</th> <th>Price</th> <th

问题 n = 1 p = 4 print n += p gives me: File "p7.py", line 17 print n += p SyntaxError: invalid syntax How can this problem be fixed? 回答1: n += p is a statement in Python, not an expression that returns a value you could print. This is different from a couple of other languages, for example Ruby, where everything is an expression. You need to do n += p print n 回答2: Assignment, including "augmented" assignment ( x op= expr as shorcut for x = x op expr ), is a statement, not an expression. So it

问题 n = 1 p = 4 print n += p gives me: File "p7.py", line 17 print n += p SyntaxError: invalid syntax How can this problem be fixed? 回答1: n += p is a statement in Python, not an expression that returns a value you could print. This is different from a couple of other languages, for example Ruby, where everything is an expression. You need to do n += p print n 回答2: Assignment, including "augmented" assignment ( x op= expr as shorcut for x = x op expr ), is a statement, not an expression. So it